27 lines
1.3 KiB
LLVM
27 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -safe-stack < %s | FileCheck %s
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target triple = "x86_64-unknown-unknown"
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define void @min_of_pointers(i32* %p) safestack {
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; CHECK-LABEL: @min_of_pointers(
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; CHECK-NEXT: [[UNSAFE_STACK_PTR:%.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr, align 8
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; CHECK-NEXT: [[UNSAFE_STACK_STATIC_TOP:%.*]] = getelementptr i8, i8* [[UNSAFE_STACK_PTR]], i32 -16
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; CHECK-NEXT: store i8* [[UNSAFE_STACK_STATIC_TOP]], i8** @__safestack_unsafe_stack_ptr, align 8
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; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, i8* [[UNSAFE_STACK_PTR]], i32 -4
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; CHECK-NEXT: [[A_UNSAFE1:%.*]] = bitcast i8* [[TMP1]] to i32*
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32* [[A_UNSAFE1]], [[P:%.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, i8* [[UNSAFE_STACK_PTR]], i32 -4
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; CHECK-NEXT: [[A_UNSAFE:%.*]] = bitcast i8* [[TMP2]] to i32*
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; CHECK-NEXT: [[S:%.*]] = select i1 [[CMP]], i32* [[A_UNSAFE]], i32* [[P]]
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; CHECK-NEXT: store i32 0, i32* [[S]], align 4
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; CHECK-NEXT: store i8* [[UNSAFE_STACK_PTR]], i8** @__safestack_unsafe_stack_ptr, align 8
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; CHECK-NEXT: ret void
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;
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%a = alloca i32
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%cmp = icmp ult i32* %a, %p
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%s = select i1 %cmp, i32* %a, i32* %p
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store i32 0, i32* %s
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ret void
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}
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