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79 lines
1.9 KiB
LLVM
79 lines
1.9 KiB
LLVM
; RUN: opt < %s -boundschecking -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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@.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*>
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declare noalias i8* @malloc(i64) nounwind
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declare noalias i8* @calloc(i64, i64) nounwind
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declare noalias i8* @realloc(i8* nocapture, i64) nounwind
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; CHECK: @f1
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define void @f1() nounwind {
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%1 = tail call i8* @malloc(i64 32)
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%2 = bitcast i8* %1 to i32*
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%idx = getelementptr inbounds i32* %2, i64 2
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; CHECK-NOT: trap
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store i32 3, i32* %idx, align 4
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ret void
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}
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; CHECK: @f2
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define void @f2() nounwind {
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%1 = tail call i8* @malloc(i64 32)
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%2 = bitcast i8* %1 to i32*
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%idx = getelementptr inbounds i32* %2, i64 8
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; CHECK: trap
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store i32 3, i32* %idx, align 4
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ret void
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}
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; CHECK: @f3
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define void @f3(i64 %x) nounwind {
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%1 = tail call i8* @calloc(i64 4, i64 %x)
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%2 = bitcast i8* %1 to i32*
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%idx = getelementptr inbounds i32* %2, i64 8
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; CHECK-NEXT: mul i64 4, %
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; CHECK-NEXT: sub i64 {{.*}}, 32
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; CHECK-NEXT: icmp ult i64 {{.*}}, 32
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; CHECK-NEXT: icmp ult i64 {{.*}}, 4
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; CHECK-NEXT: or i1
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; CHECK: trap
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store i32 3, i32* %idx, align 4
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ret void
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}
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; CHECK: @f4
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define void @f4(i64 %x) nounwind {
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%1 = tail call i8* @realloc(i8* null, i64 %x) nounwind
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%2 = bitcast i8* %1 to i32*
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%idx = getelementptr inbounds i32* %2, i64 8
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; CHECK: trap
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%3 = load i32* %idx, align 4
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ret void
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}
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; CHECK: @f5
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define void @f5(i64 %x) nounwind {
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%idx = getelementptr inbounds [8 x i8]* @.str, i64 0, i64 %x
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; CHECK: trap
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%1 = load i8* %idx, align 4
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ret void
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}
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; CHECK: @f6
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define void @f6(i64 %x) nounwind {
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%1 = alloca i128
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; CHECK-NOT: trap
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%2 = load i128* %1, align 4
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ret void
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}
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; CHECK: @f7
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define void @f7(i64 %x) nounwind {
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%1 = alloca i128, i64 %x
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; CHECK: mul i64 16,
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; CHECK: trap
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%2 = load i128* %1, align 4
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ret void
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}
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