https://github.com/AmrDeveloper created https://github.com/llvm/llvm-project/pull/172163
Fixed a crash when explicitly casting a scalar to an atomic complex. Issue: #114885 >From fc2ae48c8519adb017b8e38509ff491679baa805 Mon Sep 17 00:00:00 2001 From: Amr Hesham <[email protected]> Date: Sat, 13 Dec 2025 16:46:33 +0100 Subject: [PATCH] [clang] Fixed a crash when explicitly casting to atomic complex --- clang/docs/ReleaseNotes.rst | 1 + clang/lib/CodeGen/CGExprComplex.cpp | 2 ++ clang/test/CodeGen/complex.c | 15 +++++++++++++++ 3 files changed, 18 insertions(+) diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index feaf92ad4415f..16f983fe82ddd 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -800,6 +800,7 @@ Crash and bug fixes containing a single colon. (#GH167905) - Fixed a crash when parsing malformed #pragma clang loop vectorize_width(4,8,16) by diagnosing invalid comma-separated argument lists. (#GH166325) +- Fixed a crash when explicitly casting a scalar to an atomic complex. (#GH114885) Improvements ^^^^^^^^^^^^ diff --git a/clang/lib/CodeGen/CGExprComplex.cpp b/clang/lib/CodeGen/CGExprComplex.cpp index e5815ef1130dc..c8f8bda5d567e 100644 --- a/clang/lib/CodeGen/CGExprComplex.cpp +++ b/clang/lib/CodeGen/CGExprComplex.cpp @@ -533,6 +533,8 @@ ComplexPairTy ComplexExprEmitter::EmitScalarToComplexCast(llvm::Value *Val, QualType DestType, SourceLocation Loc) { // Convert the input element to the element type of the complex. + if (DestType->isAtomicType()) + DestType = DestType->castAs<AtomicType>()->getValueType(); DestType = DestType->castAs<ComplexType>()->getElementType(); Val = CGF.EmitScalarConversion(Val, SrcType, DestType, Loc); diff --git a/clang/test/CodeGen/complex.c b/clang/test/CodeGen/complex.c index 91fc9dda72f72..c2f95b93e3016 100644 --- a/clang/test/CodeGen/complex.c +++ b/clang/test/CodeGen/complex.c @@ -593,3 +593,18 @@ void imag_on_scalar_with_type_promotion() { _Float16 _Complex a; _Float16 b = __real__(__imag__ a); } + +// CHECK-LABEL: define dso_local void @explicit_cast_scalar_to_atomic_complex( +// CHECK-SAME: ) #[[ATTR0]] { +// CHECK-NEXT: [[ENTRY:.*:]] +// CHECK-NEXT: [[A:%.*]] = alloca { float, float }, align 8 +// CHECK-NEXT: [[A_REALP:%.*]] = getelementptr inbounds nuw { float, float }, ptr [[A]], i32 0, i32 0 +// CHECK-NEXT: [[A_IMAGP:%.*]] = getelementptr inbounds nuw { float, float }, ptr [[A]], i32 0, i32 1 +// CHECK-NEXT: store float 2.000000e+00, ptr [[A_REALP]], align 8 +// CHECK-NEXT: store float 0.000000e+00, ptr [[A_IMAGP]], align 4 +// CHECK-NEXT: ret void +// +void explicit_cast_scalar_to_atomic_complex() { + _Atomic _Complex float a = (_Atomic _Complex float)2.0f; +} + _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
