[llvm] da94a2b - [InstSimplify] Correct icmp_lshr test to use ult instead of slt

[Matt Devereau via llvm-commits]

Author: Matt Devereau
Date: 2023-02-20T09:51:11Z
New Revision: da94a2b62a01ed49d4e97c0d21f95243217b1cae

URL: https://github.com/llvm/llvm-project/commit/da94a2b62a01ed49d4e97c0d21f95243217b1cae
DIFF: https://github.com/llvm/llvm-project/commit/da94a2b62a01ed49d4e97c0d21f95243217b1cae.diff

LOG: [InstSimplify] Correct icmp_lshr test to use ult instead of slt

Added: 
    

Modified: 
    llvm/test/Transforms/InstSimplify/compare.ll

Removed: 
    


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diff  --git a/llvm/test/Transforms/InstSimplify/compare.ll b/llvm/test/Transforms/InstSimplify/compare.ll
index 844b732f54ad..260d34519e11 100644
--- a/llvm/test/Transforms/InstSimplify/compare.ll
+++ b/llvm/test/Transforms/InstSimplify/compare.ll
@@ -2877,13 +2877,13 @@ define i1 @neg_icmp_lshr_known_non_zero_ult_no_nuw(i8 %x) {
 ; CHECK-NEXT:    [[OR:%.*]] = or i8 [[X:%.*]], 1
 ; CHECK-NEXT:    [[X1:%.*]] = shl i8 [[OR]], 1
 ; CHECK-NEXT:    [[X2:%.*]] = shl i8 [[OR]], 2
-; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i8 [[X1]], [[X2]]
+; CHECK-NEXT:    [[CMP:%.*]] = icmp ult i8 [[X1]], [[X2]]
 ; CHECK-NEXT:    ret i1 [[CMP]]
 ;
   %or = or i8 %x, 1
   %x1 = shl i8 %or, 1
   %x2 = shl i8 %or, 2
-  %cmp = icmp slt i8 %x1, %x2
+  %cmp = icmp ult i8 %x1, %x2
   ret i1 %cmp
 }