forked from OSchip/llvm-project
42 lines
1.7 KiB
LLVM
42 lines
1.7 KiB
LLVM
; Test the complex GetElementPtr instruction handling in the EfficiencySanitizer
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; cache fragmentation tool.
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;
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; RUN: opt < %s -esan -esan-cache-frag -S | FileCheck %s
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; Code from http://llvm.org/docs/LangRef.html#getelementptr-instruction
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; struct RT {
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; char A;
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; int B[10][20];
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; char C;
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; };
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; struct ST {
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; int X;
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; double Y;
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; struct RT Z;
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; };
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;
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; int *foo(struct ST *s) {
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; return &s[1].Z.B[5][13];
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; }
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%struct.RT = type { i8, [10 x [20 x i32]], i8 }
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%struct.ST = type { i32, double, %struct.RT }
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define i32* @foo(%struct.ST* %s) nounwind uwtable readnone optsize ssp {
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entry:
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%arrayidx = getelementptr inbounds %struct.ST, %struct.ST* %s, i64 1, i32 2, i32 1, i64 5, i64 13
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ret i32* %arrayidx
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}
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; CHECK: %0 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @"struct.ST$3$13$3$11", i32 0, i32 3)
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; CHECK-NEXT: %1 = add i64 %0, 1
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; CHECK-NEXT: store i64 %1, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @"struct.ST$3$13$3$11", i32 0, i32 3)
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; CHECK-NEXT: %2 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @"struct.ST$3$13$3$11", i32 0, i32 2)
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; CHECK-NEXT: %3 = add i64 %2, 1
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; CHECK-NEXT: store i64 %3, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @"struct.ST$3$13$3$11", i32 0, i32 2)
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; CHECK-NEXT: %4 = load i64, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @"struct.RT$3$11$14$11", i32 0, i32 1)
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; CHECK-NEXT: %5 = add i64 %4, 1
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; CHECK-NEXT: store i64 %5, i64* getelementptr inbounds ([4 x i64], [4 x i64]* @"struct.RT$3$11$14$11", i32 0, i32 1)
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; CHECK-NEXT: %arrayidx = getelementptr inbounds %struct.ST, %struct.ST* %s, i64 1, i32 2, i32 1, i64 5, i64 13
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; CHECK-NEXT: ret i32* %arrayidx
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