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llvm-mirror/test/Instrumentation/PoisonChecking/basic-flag-validation.ll
Philip Reames d64a701ab4 [PoisonCheker] Support for out of bounds operands on shifts + insert/extractelement 
These are sources of poison which don't come from flags, but are clearly documented in the LangRef.  Left off support for scalable vectors for the moment, but should be easy to add if anyone is interested.  

llvm-svn: 365543
2019-07-09 19:26:12 +00:00

323 lines
11 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=poison-checking -S -poison-checking-function-local < %s | FileCheck %s
; This file contains tests to exercise the custom flag validation rules
define i32 @add_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @add_noflags(
; CHECK-NEXT: [[RES:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[RES]]
;
%res = add i32 %a, %b
ret i32 %res
}
define i32 @add_nsw(i32 %a, i32 %b) {
; CHECK-LABEL: @add_nsw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[RES:%.*]] = add nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = add nsw i32 %a, %b
ret i32 %res
}
define i32 @add_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @add_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[RES:%.*]] = add nuw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = add nuw i32 %a, %b
ret i32 %res
}
define i32 @add_nsw_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @add_nsw_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[TMP3:%.*]] = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 [[A]], i32 [[B]])
; CHECK-NEXT: [[TMP4:%.*]] = extractvalue { i32, i1 } [[TMP3]], 1
; CHECK-NEXT: [[TMP5:%.*]] = or i1 [[TMP2]], [[TMP4]]
; CHECK-NEXT: [[RES:%.*]] = add nuw nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP6:%.*]] = xor i1 [[TMP5]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP6]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = add nsw nuw i32 %a, %b
ret i32 %res
}
define i32 @sub_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @sub_noflags(
; CHECK-NEXT: [[RES:%.*]] = sub i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[RES]]
;
%res = sub i32 %a, %b
ret i32 %res
}
define i32 @sub_nsw(i32 %a, i32 %b) {
; CHECK-LABEL: @sub_nsw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[RES:%.*]] = sub nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = sub nsw i32 %a, %b
ret i32 %res
}
define i32 @sub_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @sub_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[RES:%.*]] = sub nuw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = sub nuw i32 %a, %b
ret i32 %res
}
define i32 @sub_nsw_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @sub_nsw_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[TMP3:%.*]] = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 [[A]], i32 [[B]])
; CHECK-NEXT: [[TMP4:%.*]] = extractvalue { i32, i1 } [[TMP3]], 1
; CHECK-NEXT: [[TMP5:%.*]] = or i1 [[TMP2]], [[TMP4]]
; CHECK-NEXT: [[RES:%.*]] = sub nuw nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP6:%.*]] = xor i1 [[TMP5]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP6]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = sub nsw nuw i32 %a, %b
ret i32 %res
}
define i32 @mul_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @mul_noflags(
; CHECK-NEXT: [[RES:%.*]] = mul i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[RES]]
;
%res = mul i32 %a, %b
ret i32 %res
}
define i32 @mul_nsw(i32 %a, i32 %b) {
; CHECK-LABEL: @mul_nsw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[RES:%.*]] = mul nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = mul nsw i32 %a, %b
ret i32 %res
}
define i32 @mul_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @mul_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[RES:%.*]] = mul nuw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = mul nuw i32 %a, %b
ret i32 %res
}
define i32 @mul_nsw_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @mul_nsw_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 [[A:%.*]], i32 [[B:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i32, i1 } [[TMP1]], 1
; CHECK-NEXT: [[TMP3:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 [[A]], i32 [[B]])
; CHECK-NEXT: [[TMP4:%.*]] = extractvalue { i32, i1 } [[TMP3]], 1
; CHECK-NEXT: [[TMP5:%.*]] = or i1 [[TMP2]], [[TMP4]]
; CHECK-NEXT: [[RES:%.*]] = mul nuw nsw i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP6:%.*]] = xor i1 [[TMP5]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP6]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = mul nsw nuw i32 %a, %b
ret i32 %res
}
define i32 @sdiv_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @sdiv_noflags(
; CHECK-NEXT: [[RES:%.*]] = sdiv i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[RES]]
;
%res = sdiv i32 %a, %b
ret i32 %res
}
define i32 @sdiv_exact(i32 %a, i32 %b) {
; CHECK-LABEL: @sdiv_exact(
; CHECK-NEXT: [[TMP1:%.*]] = srem i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 0
; CHECK-NEXT: [[RES:%.*]] = sdiv exact i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = sdiv exact i32 %a, %b
ret i32 %res
}
define i32 @udiv_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @udiv_noflags(
; CHECK-NEXT: [[RES:%.*]] = udiv i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: ret i32 [[RES]]
;
%res = udiv i32 %a, %b
ret i32 %res
}
define i32 @udiv_exact(i32 %a, i32 %b) {
; CHECK-LABEL: @udiv_exact(
; CHECK-NEXT: [[TMP1:%.*]] = urem i32 [[A:%.*]], [[B:%.*]]
; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP1]], 0
; CHECK-NEXT: [[RES:%.*]] = udiv exact i32 [[A]], [[B]]
; CHECK-NEXT: [[TMP3:%.*]] = xor i1 [[TMP2]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP3]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = udiv exact i32 %a, %b
ret i32 %res
}
define i32 @ashr_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @ashr_noflags(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = ashr i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = ashr i32 %a, %b
ret i32 %res
}
define i32 @ashr_exact(i32 %a, i32 %b) {
; CHECK-LABEL: @ashr_exact(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = ashr exact i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = ashr exact i32 %a, %b
ret i32 %res
}
define i32 @lshr_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @lshr_noflags(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = lshr i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = lshr i32 %a, %b
ret i32 %res
}
define i32 @lshr_exact(i32 %a, i32 %b) {
; CHECK-LABEL: @lshr_exact(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = lshr exact i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = lshr exact i32 %a, %b
ret i32 %res
}
define i32 @shl_noflags(i32 %a, i32 %b) {
; CHECK-LABEL: @shl_noflags(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = shl i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = shl i32 %a, %b
ret i32 %res
}
define i32 @shl_nsw(i32 %a, i32 %b) {
; CHECK-LABEL: @shl_nsw(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = shl nsw i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = shl nsw i32 %a, %b
ret i32 %res
}
define i32 @shl_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @shl_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = shl nuw i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = shl nuw i32 %a, %b
ret i32 %res
}
define i32 @shl_nsw_nuw(i32 %a, i32 %b) {
; CHECK-LABEL: @shl_nsw_nuw(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[B:%.*]], 32
; CHECK-NEXT: [[RES:%.*]] = shl nuw nsw i32 [[A:%.*]], [[B]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = shl nsw nuw i32 %a, %b
ret i32 %res
}
define i32 @extractelement(<4 x i32> %v, i32 %idx) {
; CHECK-LABEL: @extractelement(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[IDX:%.*]], 4
; CHECK-NEXT: [[RES:%.*]] = extractelement <4 x i32> [[V:%.*]], i32 [[IDX]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret i32 [[RES]]
;
%res = extractelement <4 x i32> %v, i32 %idx
ret i32 %res
}
define <4 x i32> @insertelement(<4 x i32> %v, i32 %idx, i32 %val) {
; CHECK-LABEL: @insertelement(
; CHECK-NEXT: [[TMP1:%.*]] = icmp uge i32 [[IDX:%.*]], 4
; CHECK-NEXT: [[RES:%.*]] = insertelement <4 x i32> [[V:%.*]], i32 [[VAL:%.*]], i32 [[IDX]]
; CHECK-NEXT: [[TMP2:%.*]] = xor i1 [[TMP1]], true
; CHECK-NEXT: call void @__poison_checker_assert(i1 [[TMP2]])
; CHECK-NEXT: ret <4 x i32> [[RES]]
;
%res = insertelement <4 x i32> %v, i32 %val, i32 %idx
ret <4 x i32> %res
}
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