[Webkit-unassigned] [Bug 261297] New: [Win] Infinite loop in ANGLE if compiled by clang-cl

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261297

            Bug ID: 261297
           Summary: [Win] Infinite loop in ANGLE if compiled by clang-cl
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

[Win] Infinite loop in ANGLE if compiled by clang-cl

Windows port clang-cl release builds are crashing for the following tests.
I'm using LLVM 16.0.6.

Regressions: Unexpected crashes (2)
  webgl/2.0.y/conformance/glsl/bugs/complex-glsl-does-not-crash.html [ Crash ]
  webgl/2.0.y/conformance/glsl/misc/shader-uniform-packing-restrictions.html [ Crash ]

It's an infinite loop.

Callstack

> libGLESv2.dll!sh::TIntermBinary::propagatePrecision(sh::TPrecision precision) Line 2031	C++
> [Inline Frame] libGLESv2.dll!sh::`anonymous namespace'::PropagatePrecisionIfApplicable(sh::TIntermTyped * node, sh::TPrecision precision) Line 192	C++
> libGLESv2.dll!sh::TIntermBinary::propagatePrecision(sh::TPrecision precision) Line 2039	C++
> [Inline Frame] libGLESv2.dll!sh::`anonymous namespace'::PropagatePrecisionIfApplicable(sh::TIntermTyped * node, sh::TPrecision precision) Line 192	C++
> libGLESv2.dll!sh::TIntermBinary::propagatePrecision(sh::TPrecision precision) Line 2039	C++
> (...)

Is this a compiler optimizer bug?

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