[llvm] db89896 - [InstCombine] Add tests for D143766. NFC

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2023-02-10T12:43:31-08:00
New Revision: db89896bbbd2251fff457699635acbbedeead27f

URL: https://github.com/llvm/llvm-project/commit/db89896bbbd2251fff457699635acbbedeead27f
DIFF: https://github.com/llvm/llvm-project/commit/db89896bbbd2251fff457699635acbbedeead27f.diff

LOG: [InstCombine] Add tests for D143766. NFC

Added: 
    

Modified: 
    llvm/test/Transforms/InstCombine/icmp-mul.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/InstCombine/icmp-mul.ll b/llvm/test/Transforms/InstCombine/icmp-mul.ll
index 7adcaf390f53..13e21b59676e 100644
--- a/llvm/test/Transforms/InstCombine/icmp-mul.ll
+++ b/llvm/test/Transforms/InstCombine/icmp-mul.ll
@@ -133,6 +133,19 @@ define i1 @ult_rem_zero(i8 %x) {
   ret i1 %b
 }
 
+; Same as above, but with nsw flag too.
+; FIXME: This should be optimized like above.
+define i1 @ult_rem_zero_nsw(i8 %x) {
+; CHECK-LABEL: @ult_rem_zero_nsw(
+; CHECK-NEXT:    [[A:%.*]] = mul nuw nsw i8 [[X:%.*]], 7
+; CHECK-NEXT:    [[B:%.*]] = icmp ult i8 [[A]], 21
+; CHECK-NEXT:    ret i1 [[B]]
+;
+  %a = mul nuw nsw i8 %x, 7
+  %b = icmp ult i8 %a, 21
+  ret i1 %b
+}
+
 define i1 @ult_rem_nz(i8 %x) {
 ; CHECK-LABEL: @ult_rem_nz(
 ; CHECK-NEXT:    [[B:%.*]] = icmp ult i8 [[X:%.*]], 5
@@ -143,6 +156,19 @@ define i1 @ult_rem_nz(i8 %x) {
   ret i1 %b
 }
 
+; Same as above, but with nsw flag too.
+; FIXME: This should be optimized like above.
+define i1 @ult_rem_nz_nsw(i8 %x) {
+; CHECK-LABEL: @ult_rem_nz_nsw(
+; CHECK-NEXT:    [[A:%.*]] = mul nuw nsw i8 [[X:%.*]], 5
+; CHECK-NEXT:    [[B:%.*]] = icmp ult i8 [[A]], 21
+; CHECK-NEXT:    ret i1 [[B]]
+;
+  %a = mul nuw nsw i8 %x, 5
+  %b = icmp ult i8 %a, 21
+  ret i1 %b
+}
+
 ; Tests for sgt/ugt
 
 define i1 @sgt_positive_multip_rem_zero(i8 %x) {
@@ -185,6 +211,19 @@ define i1 @ugt_rem_zero(i8 %x) {
   ret i1 %b
 }
 
+; Same as above, but with nsw flag too.
+; FIXME: This should be optimized like above.
+define i1 @ugt_rem_zero_nsw(i8 %x) {
+; CHECK-LABEL: @ugt_rem_zero_nsw(
+; CHECK-NEXT:    [[A:%.*]] = mul nuw nsw i8 [[X:%.*]], 7
+; CHECK-NEXT:    [[B:%.*]] = icmp ugt i8 [[A]], 21
+; CHECK-NEXT:    ret i1 [[B]]
+;
+  %a = mul nuw nsw i8 %x, 7
+  %b = icmp ugt i8 %a, 21
+  ret i1 %b
+}
+
 define i1 @ugt_rem_nz(i8 %x) {
 ; CHECK-LABEL: @ugt_rem_nz(
 ; CHECK-NEXT:    [[B:%.*]] = icmp ugt i8 [[X:%.*]], 4
@@ -195,6 +234,19 @@ define i1 @ugt_rem_nz(i8 %x) {
   ret i1 %b
 }
 
+; Same as above, but with nsw flag too.
+; FIXME: This should be optimized like above.
+define i1 @ugt_rem_nz_nsw(i8 %x) {
+; CHECK-LABEL: @ugt_rem_nz_nsw(
+; CHECK-NEXT:    [[A:%.*]] = mul nuw nsw i8 [[X:%.*]], 5
+; CHECK-NEXT:    [[B:%.*]] = icmp ugt i8 [[A]], 21
+; CHECK-NEXT:    ret i1 [[B]]
+;
+  %a = mul nuw nsw i8 %x, 5
+  %b = icmp ugt i8 %a, 21
+  ret i1 %b
+}
+
 ; Tests for eq/ne
 
 define i1 @eq_nsw_rem_zero(i8 %x) {