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[KeyInstr][Clang] Assign vector element atom #134649

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Merged
merged 1 commit into from
May 27, 2025
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[KeyInstr][Clang] Assign vector element atom #134649

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5 changes: 3 additions & 2 deletions clang/lib/CodeGen/CGExpr.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2507,8 +2507,9 @@ void CodeGenFunction::EmitStoreThroughLValue(RValue Src, LValue Dst,
Vec = Builder.CreateBitCast(Vec, IRStoreTy);
}

Builder.CreateStore(Vec, Dst.getVectorAddress(),
Dst.isVolatileQualified());
auto *I = Builder.CreateStore(Vec, Dst.getVectorAddress(),
Dst.isVolatileQualified());
addInstToCurrentSourceAtom(I, Vec);
return;
}

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8 changes: 8 additions & 0 deletions clang/test/DebugInfo/KeyInstructions/agg.c
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Expand Up @@ -4,14 +4,22 @@
// RUN: %clang_cc1 -triple x86_64-linux-gnu -gkey-instructions -x c %s -debug-info-kind=line-tables-only -emit-llvm -o - \
// RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank

__attribute__((ext_vector_type(1))) char c;
typedef struct { int a, b, c; } Struct;
void fun(Struct a) {
// CHECK: call void @llvm.memcpy{{.*}}, !dbg [[G1R1:!.*]]
Struct b = a;

// CHECK: call void @llvm.memcpy{{.*}}, !dbg [[G2R1:!.*]]
b = a;

// CHECK: %2 = load <1 x i8>, ptr @c
// CHECK: %vecins = insertelement <1 x i8> %2, i8 0, i32 0, !dbg [[G3R2:!.*]]
// CHECK: store <1 x i8> %vecins, ptr @c{{.*}}, !dbg [[G3R1:!.*]]
c[0] = 0;
}

// CHECK: [[G1R1]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 1)
// CHECK: [[G2R1]] = !DILocation({{.*}}, atomGroup: 2, atomRank: 1)
// CHECK: [[G3R2]] = !DILocation({{.*}}, atomGroup: 3, atomRank: 2)
// CHECK: [[G3R1]] = !DILocation({{.*}}, atomGroup: 3, atomRank: 1)
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