summaryrefslogtreecommitdiffstats
path: root/llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll')
-rw-r--r--llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll24
1 files changed, 12 insertions, 12 deletions
diff --git a/llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll b/llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll
index e9ba7d44968..30e7d541615 100644
--- a/llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll
+++ b/llvm/test/Transforms/InstCombine/unsigned-add-lack-of-overflow-check.ll
@@ -10,8 +10,8 @@
define i1 @t0_basic(i8 %x, i8 %y) {
; CHECK-LABEL: @t0_basic(
-; CHECK-NEXT: [[T0:%.*]] = add i8 [[X:%.*]], [[Y:%.*]]
-; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[Y]]
+; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[Y:%.*]], -1
+; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[TMP1]], [[X:%.*]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = add i8 %x, %y
@@ -21,8 +21,8 @@ define i1 @t0_basic(i8 %x, i8 %y) {
define <2 x i1> @t1_vec(<2 x i8> %x, <2 x i8> %y) {
; CHECK-LABEL: @t1_vec(
-; CHECK-NEXT: [[T0:%.*]] = add <2 x i8> [[X:%.*]], [[Y:%.*]]
-; CHECK-NEXT: [[R:%.*]] = icmp uge <2 x i8> [[T0]], [[Y]]
+; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i8> [[Y:%.*]], <i8 -1, i8 -1>
+; CHECK-NEXT: [[R:%.*]] = icmp uge <2 x i8> [[TMP1]], [[X:%.*]]
; CHECK-NEXT: ret <2 x i1> [[R]]
;
%t0 = add <2 x i8> %x, %y
@@ -34,8 +34,8 @@ define <2 x i1> @t1_vec(<2 x i8> %x, <2 x i8> %y) {
define i1 @t2_symmetry(i8 %x, i8 %y) {
; CHECK-LABEL: @t2_symmetry(
-; CHECK-NEXT: [[T0:%.*]] = add i8 [[X:%.*]], [[Y:%.*]]
-; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[X]]
+; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[X:%.*]], -1
+; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[TMP1]], [[Y:%.*]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = add i8 %x, %y
@@ -48,8 +48,8 @@ declare i8 @gen8()
define i1 @t3_commutative(i8 %x) {
; CHECK-LABEL: @t3_commutative(
; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
-; CHECK-NEXT: [[T0:%.*]] = add i8 [[Y]], [[X:%.*]]
-; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[Y]]
+; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[Y]], -1
+; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[TMP1]], [[X:%.*]]
; CHECK-NEXT: ret i1 [[R]]
;
%y = call i8 @gen8()
@@ -60,8 +60,8 @@ define i1 @t3_commutative(i8 %x) {
define i1 @t4_commutative(i8 %x, i8 %y) {
; CHECK-LABEL: @t4_commutative(
-; CHECK-NEXT: [[T0:%.*]] = add i8 [[X:%.*]], [[Y:%.*]]
-; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[T0]], [[Y]]
+; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[Y:%.*]], -1
+; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[TMP1]], [[X:%.*]]
; CHECK-NEXT: ret i1 [[R]]
;
%t0 = add i8 %x, %y
@@ -72,8 +72,8 @@ define i1 @t4_commutative(i8 %x, i8 %y) {
define i1 @t5_commutative(i8 %x) {
; CHECK-LABEL: @t5_commutative(
; CHECK-NEXT: [[Y:%.*]] = call i8 @gen8()
-; CHECK-NEXT: [[T0:%.*]] = add i8 [[Y]], [[X:%.*]]
-; CHECK-NEXT: [[R:%.*]] = icmp ule i8 [[Y]], [[T0]]
+; CHECK-NEXT: [[TMP1:%.*]] = xor i8 [[Y]], -1
+; CHECK-NEXT: [[R:%.*]] = icmp uge i8 [[TMP1]], [[X:%.*]]
; CHECK-NEXT: ret i1 [[R]]
;
%y = call i8 @gen8()
OpenPOWER on IntegriCloud