shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

Description

@alexrp

Zig Version

llvm19 branch

Steps to Reproduce and Observed Behavior

slices differ. first difference occurs at index 4 (0x4)
============ expected this output: ============= len: 5 (0x5)
[0]: 4470704853
[1]: 4470699637
[2]: 4472813037
[3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
[4]: 4470699404
============= instead found this: ============== len: 5 (0x5)
[0]: 4470704853
[1]: 4470699637
[2]: 4472813037
[3]: 4472813200
[4]: 0
================================================
error: TestExpectedEqual
/Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
return error.TestExpectedEqual;
^
/Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
.array => |array| try expectEqualSlices(array.child, &expected, &actual),
^
/Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
try testing.expectEqual(expected, unwound);
^
test
+- test-standalone
+- standalone_test_cases
+- standalone_test_cases.stack_iterator
+- run shared_lib_unwind failure
error: the following command exited with error code 1:
/Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
test transitive failure
+- test-standalone transitive failure
+- standalone_test_cases transitive failure
+- standalone_test_cases.stack_iterator transitive failure
+- run shared_lib_unwind failure
error: the following build command failed with exit code 1:
/Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4

Expected Behavior

No failure.

Metadata

Metadata

Assignees

No one assigned

    Labels

    arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
       blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
      }
      } catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
      })();
      (function(){
      try {
      var __m = "github.com";
      var __re = new RegExp('^' + "github\\.com" + '
      
      Skip to content

      shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

      Description

      @alexrp

      Zig Version

      llvm19 branch

      Steps to Reproduce and Observed Behavior

      slices differ. first difference occurs at index 4 (0x4)
      ============ expected this output: ============= len: 5 (0x5)
      [0]: 4470704853
      [1]: 4470699637
      [2]: 4472813037
      [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
      [4]: 4470699404
      ============= instead found this: ============== len: 5 (0x5)
      [0]: 4470704853
      [1]: 4470699637
      [2]: 4472813037
      [3]: 4472813200
      [4]: 0
      ================================================
      error: TestExpectedEqual
      /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
      return error.TestExpectedEqual;
      ^
      /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
      .array => |array| try expectEqualSlices(array.child, &expected, &actual),
      ^
      /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
      try testing.expectEqual(expected, unwound);
      ^
      test
      +- test-standalone
      +- standalone_test_cases
      +- standalone_test_cases.stack_iterator
      +- run shared_lib_unwind failure
      error: the following command exited with error code 1:
      /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
      test transitive failure
      +- test-standalone transitive failure
      +- standalone_test_cases transitive failure
      +- standalone_test_cases.stack_iterator transitive failure
      +- run shared_lib_unwind failure
      error: the following build command failed with exit code 1:
      /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
      

      Expected Behavior

      No failure.

      Metadata

      Metadata

      Assignees

      No one assigned

        Labels

        arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

        Type

        No type

        Projects

        No projects

          Milestone

          No milestone

          Relationships

          None yet

          Development

          No branches or pull requests

          Issue actions

          , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
          Skip to content

          shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

          Description

          @alexrp

          Zig Version

          llvm19 branch

          Steps to Reproduce and Observed Behavior

          slices differ. first difference occurs at index 4 (0x4)
          ============ expected this output: ============= len: 5 (0x5)
          [0]: 4470704853
          [1]: 4470699637
          [2]: 4472813037
          [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
          [4]: 4470699404
          ============= instead found this: ============== len: 5 (0x5)
          [0]: 4470704853
          [1]: 4470699637
          [2]: 4472813037
          [3]: 4472813200
          [4]: 0
          ================================================
          error: TestExpectedEqual
          /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
          return error.TestExpectedEqual;
          ^
          /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
          .array => |array| try expectEqualSlices(array.child, &expected, &actual),
          ^
          /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
          try testing.expectEqual(expected, unwound);
          ^
          test
          +- test-standalone
          +- standalone_test_cases
          +- standalone_test_cases.stack_iterator
          +- run shared_lib_unwind failure
          error: the following command exited with error code 1:
          /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
          test transitive failure
          +- test-standalone transitive failure
          +- standalone_test_cases transitive failure
          +- standalone_test_cases.stack_iterator transitive failure
          +- run shared_lib_unwind failure
          error: the following build command failed with exit code 1:
          /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
          

          Expected Behavior

          No failure.

          Metadata

          Metadata

          Assignees

          No one assigned

            Labels

            arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

            Type

            No type

            Projects

            No projects

              Milestone

              No milestone

              Relationships

              None yet

              Development

              No branches or pull requests

              Issue actions

              , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
              Skip to content

              shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

              Description

              @alexrp

              Zig Version

              llvm19 branch

              Steps to Reproduce and Observed Behavior

              slices differ. first difference occurs at index 4 (0x4)
              ============ expected this output: ============= len: 5 (0x5)
              [0]: 4470704853
              [1]: 4470699637
              [2]: 4472813037
              [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
              [4]: 4470699404
              ============= instead found this: ============== len: 5 (0x5)
              [0]: 4470704853
              [1]: 4470699637
              [2]: 4472813037
              [3]: 4472813200
              [4]: 0
              ================================================
              error: TestExpectedEqual
              /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
              return error.TestExpectedEqual;
              ^
              /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
              .array => |array| try expectEqualSlices(array.child, &expected, &actual),
              ^
              /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
              try testing.expectEqual(expected, unwound);
              ^
              test
              +- test-standalone
              +- standalone_test_cases
              +- standalone_test_cases.stack_iterator
              +- run shared_lib_unwind failure
              error: the following command exited with error code 1:
              /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
              test transitive failure
              +- test-standalone transitive failure
              +- standalone_test_cases transitive failure
              +- standalone_test_cases.stack_iterator transitive failure
              +- run shared_lib_unwind failure
              error: the following build command failed with exit code 1:
              /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
              

              Expected Behavior

              No failure.

              Metadata

              Metadata

              Assignees

              No one assigned

                Labels

                arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

                Type

                No type

                Projects

                No projects

                  Milestone

                  No milestone

                  Relationships

                  None yet

                  Development

                  No branches or pull requests

                  Issue actions

                  , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
                  Skip to content

                  shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

                  Description

                  @alexrp

                  Zig Version

                  llvm19 branch

                  Steps to Reproduce and Observed Behavior

                  slices differ. first difference occurs at index 4 (0x4)
                  ============ expected this output: ============= len: 5 (0x5)
                  [0]: 4470704853
                  [1]: 4470699637
                  [2]: 4472813037
                  [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
                  [4]: 4470699404
                  ============= instead found this: ============== len: 5 (0x5)
                  [0]: 4470704853
                  [1]: 4470699637
                  [2]: 4472813037
                  [3]: 4472813200
                  [4]: 0
                  ================================================
                  error: TestExpectedEqual
                  /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
                  return error.TestExpectedEqual;
                  ^
                  /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
                  .array => |array| try expectEqualSlices(array.child, &expected, &actual),
                  ^
                  /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
                  try testing.expectEqual(expected, unwound);
                  ^
                  test
                  +- test-standalone
                  +- standalone_test_cases
                  +- standalone_test_cases.stack_iterator
                  +- run shared_lib_unwind failure
                  error: the following command exited with error code 1:
                  /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
                  test transitive failure
                  +- test-standalone transitive failure
                  +- standalone_test_cases transitive failure
                  +- standalone_test_cases.stack_iterator transitive failure
                  +- run shared_lib_unwind failure
                  error: the following build command failed with exit code 1:
                  /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
                  

                  Expected Behavior

                  No failure.

                  Metadata

                  Metadata

                  Assignees

                  No one assigned

                    Labels

                    arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

                    Type

                    No type

                    Projects

                    No projects

                      Milestone

                      No milestone

                      Relationships

                      None yet

                      Development

                      No branches or pull requests

                      Issue actions

                      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
                      Skip to content

                      shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

                      Description

                      @alexrp

                      Zig Version

                      llvm19 branch

                      Steps to Reproduce and Observed Behavior

                      slices differ. first difference occurs at index 4 (0x4)
                      ============ expected this output: ============= len: 5 (0x5)
                      [0]: 4470704853
                      [1]: 4470699637
                      [2]: 4472813037
                      [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
                      [4]: 4470699404
                      ============= instead found this: ============== len: 5 (0x5)
                      [0]: 4470704853
                      [1]: 4470699637
                      [2]: 4472813037
                      [3]: 4472813200
                      [4]: 0
                      ================================================
                      error: TestExpectedEqual
                      /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
                      return error.TestExpectedEqual;
                      ^
                      /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
                      .array => |array| try expectEqualSlices(array.child, &expected, &actual),
                      ^
                      /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
                      try testing.expectEqual(expected, unwound);
                      ^
                      test
                      +- test-standalone
                      +- standalone_test_cases
                      +- standalone_test_cases.stack_iterator
                      +- run shared_lib_unwind failure
                      error: the following command exited with error code 1:
                      /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
                      test transitive failure
                      +- test-standalone transitive failure
                      +- standalone_test_cases transitive failure
                      +- standalone_test_cases.stack_iterator transitive failure
                      +- run shared_lib_unwind failure
                      error: the following build command failed with exit code 1:
                      /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
                      

                      Expected Behavior

                      No failure.

                      Metadata

                      Metadata

                      Assignees

                      No one assigned

                        Labels

                        arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

                        Type

                        No type

                        Projects

                        No projects

                          Milestone

                          No milestone

                          Relationships

                          None yet

                          Development

                          No branches or pull requests

                          Issue actions

                          , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
                          Skip to content

                          shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

                          Description

                          @alexrp

                          Zig Version

                          llvm19 branch

                          Steps to Reproduce and Observed Behavior

                          slices differ. first difference occurs at index 4 (0x4)
                          ============ expected this output: ============= len: 5 (0x5)
                          [0]: 4470704853
                          [1]: 4470699637
                          [2]: 4472813037
                          [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
                          [4]: 4470699404
                          ============= instead found this: ============== len: 5 (0x5)
                          [0]: 4470704853
                          [1]: 4470699637
                          [2]: 4472813037
                          [3]: 4472813200
                          [4]: 0
                          ================================================
                          error: TestExpectedEqual
                          /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
                          return error.TestExpectedEqual;
                          ^
                          /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
                          .array => |array| try expectEqualSlices(array.child, &expected, &actual),
                          ^
                          /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
                          try testing.expectEqual(expected, unwound);
                          ^
                          test
                          +- test-standalone
                          +- standalone_test_cases
                          +- standalone_test_cases.stack_iterator
                          +- run shared_lib_unwind failure
                          error: the following command exited with error code 1:
                          /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
                          test transitive failure
                          +- test-standalone transitive failure
                          +- standalone_test_cases transitive failure
                          +- standalone_test_cases.stack_iterator transitive failure
                          +- run shared_lib_unwind failure
                          error: the following build command failed with exit code 1:
                          /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
                          

                          Expected Behavior

                          No failure.

                          Metadata

                          Metadata

                          Assignees

                          No one assigned

                            Labels

                            arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

                            Type

                            No type

                            Projects

                            No projects

                              Milestone

                              No milestone

                              Relationships

                              None yet

                              Development

                              No branches or pull requests

                              Issue actions

                              , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
                              Skip to content

                              shared_lib_unwind test fails with LLVM 19 on x86_64-macos #21337

                              Description

                              @alexrp

                              Zig Version

                              llvm19 branch

                              Steps to Reproduce and Observed Behavior

                              slices differ. first difference occurs at index 4 (0x4)
                              ============ expected this output: ============= len: 5 (0x5)
                              [0]: 4470704853
                              [1]: 4470699637
                              [2]: 4472813037
                              [3]: 447[2813](https://github.com/ziglang/zig/actions/runs/10728463483/job/29753056611#step:3:2814)200
                              [4]: 4470699404
                              ============= instead found this: ============== len: 5 (0x5)
                              [0]: 4470704853
                              [1]: 4470699637
                              [2]: 4472813037
                              [3]: 4472813200
                              [4]: 0
                              ================================================
                              error: TestExpectedEqual
                              /Users/runner/work/zig/zig/build/../lib/std/testing.zig:401:5: 0x10a796ff2 in expectEqualSlices__anon_1655 (shared_lib_unwind)
                              return error.TestExpectedEqual;
                              ^
                              /Users/runner/work/zig/zig/build/../lib/std/testing.zig:122:27: 0x10a7974f0 in expectEqualInner__anon_1590 (shared_lib_unwind)
                              .array => |array| try expectEqualSlices(array.child, &expected, &actual),
                              ^
                              /Users/runner/work/zig/zig/test/standalone/stack_iterator/shared_lib_unwind.zig:46:5: 0x10a7975ec in main (shared_lib_unwind)
                              try testing.expectEqual(expected, unwound);
                              ^
                              test
                              +- test-standalone
                              +- standalone_test_cases
                              +- standalone_test_cases.stack_iterator
                              +- run shared_lib_unwind failure
                              error: the following command exited with error code 1:
                              /Users/runner/work/zig/zig/build/zig-local-cache/o/28ff8aee07c6096c08071886739901cc/shared_lib_unwind Build Summary: 7118/7358 steps succeeded; 235 skipped; 1 failed; 37599/38966 tests passed; 1367 skipped
                              test transitive failure
                              +- test-standalone transitive failure
                              +- standalone_test_cases transitive failure
                              +- standalone_test_cases.stack_iterator transitive failure
                              +- run shared_lib_unwind failure
                              error: the following build command failed with exit code 1:
                              /Users/runner/work/zig/zig/build/zig-local-cache/o/6cf341a4a5e0ae7e7bdbe78ce9db8a1f/build /Users/runner/work/zig/zig/build/stage3/bin/zig /Users/runner/work/zig/zig/build/../lib /Users/runner/work/zig/zig /Users/runner/work/zig/zig/build/zig-local-cache /Users/runner/work/zig/zig/build/zig-global-cache --seed 0x22c0efb9 -Z03c91678fd6fa3aa test docs -Denable-macos-sdk -Dstatic-llvm -Dskip-non-native --search-prefix /Users/runner/zig+llvm+lld+clang-x86_64-macos-none-0.14.0-dev.1499+0006b56f4
                              

                              Expected Behavior

                              No failure.

                              Metadata

                              Metadata

                              Assignees

                              No one assigned

                                Labels

                                arch-x86_6464-bit x86backend-llvmThe LLVM backend outputs an LLVM IR Module.bugObserved behavior contradicts documented or intended behavioros-macosmacOSregressionIt worked in a previous version of Zig, but stopped working.

                                Type

                                No type

                                Projects

                                No projects

                                  Milestone

                                  No milestone

                                  Relationships

                                  None yet

                                  Development

                                  No branches or pull requests

                                  Issue actions