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https://github.com/RPCS3/llvm-mirror.git
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ac7f76f5ae
This reverts commit 3db8a3ef86e7b3331ab466a78c10a62be9e69829. This caused a different memory-sanitizer failure than earlier attempts, but it's still not right.
34 lines
1.1 KiB
LLVM
34 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -instcombine -S < %s | FileCheck %s
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; int foo() {
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; struct V { char buf1[10];
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; int b;
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; char buf2[10];
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; } var;
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;
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; char *p = &var.buf1[1];
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; return __builtin_object_size (p, 0);
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; }
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%struct.V = type { [10 x i8], i32, [10 x i8] }
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define i32 @foo() #0 {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: ret i32 27
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;
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%var = alloca %struct.V, align 4
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%t0 = bitcast %struct.V* %var to i8*
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call void @llvm.lifetime.start.p0i8(i64 28, i8* %t0) #3
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%buf1 = getelementptr inbounds %struct.V, %struct.V* %var, i32 0, i32 0
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%arrayidx = getelementptr inbounds [10 x i8], [10 x i8]* %buf1, i64 0, i64 1
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%t1 = call i64 @llvm.objectsize.i64.p0i8(i8* %arrayidx, i1 false)
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%conv = trunc i64 %t1 to i32
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call void @llvm.lifetime.end.p0i8(i64 28, i8* %t0) #3
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ret i32 %conv
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}
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
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declare i64 @llvm.objectsize.i64.p0i8(i8*, i1) #2
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
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