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