forked from OSchip/llvm-project
138 lines
5.2 KiB
LLVM
138 lines
5.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt -passes=poison-checking -S < %s | FileCheck %s
|
|
|
|
; This file contains tests to exercise the UB triggering instructions with
|
|
; a potential source of UB. The UB source is kept simple; we focus on the
|
|
; UB triggering instructions here.
|
|
|
|
define void @store(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @store(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[A]], 1
|
|
; CHECK-NEXT: [[P:%.*]] = getelementptr i8, i8* [[BASE:%.*]], i32 [[ADD]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: store i8 0, i8* [[P]]
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%add = add nsw i32 %a, 1
|
|
%p = getelementptr i8, i8* %base, i32 %add
|
|
store i8 0, i8* %p
|
|
ret void
|
|
}
|
|
|
|
define void @load(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @load(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[A]], 1
|
|
; CHECK-NEXT: [[P:%.*]] = getelementptr i8, i8* [[BASE:%.*]], i32 [[ADD]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[TMP4:%.*]] = load volatile i8, i8* [[P]]
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%add = add nsw i32 %a, 1
|
|
%p = getelementptr i8, i8* %base, i32 %add
|
|
load volatile i8, i8* %p
|
|
ret void
|
|
}
|
|
|
|
define void @atomicrmw(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @atomicrmw(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[A]], 1
|
|
; CHECK-NEXT: [[P:%.*]] = getelementptr i8, i8* [[BASE:%.*]], i32 [[ADD]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[TMP4:%.*]] = atomicrmw add i8* [[P]], i8 1 seq_cst
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%add = add nsw i32 %a, 1
|
|
%p = getelementptr i8, i8* %base, i32 %add
|
|
atomicrmw add i8* %p, i8 1 seq_cst
|
|
ret void
|
|
}
|
|
|
|
define void @cmpxchg(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @cmpxchg(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[A]], 1
|
|
; CHECK-NEXT: [[P:%.*]] = getelementptr i8, i8* [[BASE:%.*]], i32 [[ADD]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[TMP4:%.*]] = cmpxchg i8* [[P]], i8 1, i8 0 seq_cst seq_cst
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%add = add nsw i32 %a, 1
|
|
%p = getelementptr i8, i8* %base, i32 %add
|
|
cmpxchg i8* %p, i8 1, i8 0 seq_cst seq_cst
|
|
ret void
|
|
}
|
|
|
|
define i32 @udiv(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @udiv(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], 1
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[RES:%.*]] = udiv i32 2048, [[ADD]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%add = add nuw i32 %a, 1
|
|
%res = udiv i32 2048, %add
|
|
ret i32 %res
|
|
}
|
|
|
|
define i32 @sdiv(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @sdiv(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], 1
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[RES:%.*]] = sdiv i32 2048, [[ADD]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%add = add nuw i32 %a, 1
|
|
%res = sdiv i32 2048, %add
|
|
ret i32 %res
|
|
}
|
|
|
|
define i32 @urem(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @urem(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], 1
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[RES:%.*]] = urem i32 2048, [[ADD]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%add = add nuw i32 %a, 1
|
|
%res = urem i32 2048, %add
|
|
ret i32 %res
|
|
}
|
|
|
|
define i32 @srem(i8* %base, i32 %a) {
|
|
; CHECK-LABEL: @srem(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[A:%.*]], i32 1)
|
|
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
|
|
; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], 1
|
|
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
|
|
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
|
|
; CHECK-NEXT: [[RES:%.*]] = srem i32 2048, [[ADD]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%add = add nuw i32 %a, 1
|
|
%res = srem i32 2048, %add
|
|
ret i32 %res
|
|
}
|
|
|
|
|
|
|