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59169036ca
Tune SemaInit code handling #embed to take into account how many array elements remains to initialize. Also issue a warning/error message when the array/struct is at the end but there is still #embed data left. Fixes https://github.com/llvm/llvm-project/issues/128987
56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
// RUN: %clang_cc1 -std=c23 -emit-llvm -triple x86_64 %s -o - | FileCheck %s
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struct S {
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int arr[3];
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};
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struct S1 {
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struct S s;
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};
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// CHECK: @[[BConst:.*]] = private unnamed_addr constant [2 x i32] [i32 47, i32 47]
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// CHECK: @[[DConst:.*]] = private unnamed_addr constant [2 x i8] c"//"
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// CHECK: @[[SConst:.*]] = private unnamed_addr constant %struct.S { [3 x i32] [i32 47, i32 47, i32 32] }
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// CHECK: @[[S1Const:.*]] = private unnamed_addr constant %struct.S1 { %struct.S { [3 x i32] [i32 47, i32 47, i32 32] } }
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void cases(int x) {
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int a[3] = {x, x,
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#embed __FILE__
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};
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int b[2] = {
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#embed __FILE__
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};
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char d[2] = {
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#embed __FILE__
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};
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struct S s = {
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#embed __FILE__
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, x
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};
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struct S1 s1 = {
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#embed __FILE__
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, x
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};
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}
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// CHECK: define dso_local void @cases(i32 noundef %[[X:.*]])
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// CHECK: %[[A:.*]] = alloca [3 x i32]
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// CHECK: %[[B:.*]] = alloca [2 x i32]
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// CHECK: %[[D:.*]] = alloca [2 x i8]
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// CHECK: %[[S:.*]] = alloca %struct.S
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// CHECK: %[[S1:.*]] = alloca %struct.S1
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// CHECK: %[[LX:.*]] = load i32, ptr %[[X]].addr
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// CHECK: store i32 %[[LX]], ptr %[[A]]
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// CHECK: %[[GEP1:.*]] = getelementptr inbounds i32, ptr %[[A]], i64 1
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// CHECK: %[[LX1:.*]] = load i32, ptr %[[X]].addr
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// CHECK: store i32 %1, ptr %arrayinit.element
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// CHECK: %[[GEP1:.*]] = getelementptr inbounds i32, ptr %[[A]], i64 2
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// CHECK: store i32 47, ptr %[[GEP1]]
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// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[B]], ptr align 4 @[[BConst]], i64 8, i1 false)
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// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %[[D]], ptr align 1 @[[DConst]], i64 2, i1 false)
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// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[S]], ptr align 4 @[[SConst]], i64 12, i1 false)
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// CHECK: call void @llvm.memcpy.p0.p0.i64(ptr align 4 %[[S1]], ptr align 4 @[[S1Const]], i64 12, i1 false)
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