[llvm] f502ab7 - [InstCombine] Add test for #62450 (NFC)
Nikita Popov via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 19 05:47:12 PDT 2023
Author: Nikita Popov
Date: 2023-09-19T14:47:02+02:00
New Revision: f502ab7961b78d4b02e7cb61782c7bce7d6de074
URL: https://github.com/llvm/llvm-project/commit/f502ab7961b78d4b02e7cb61782c7bce7d6de074
DIFF: https://github.com/llvm/llvm-project/commit/f502ab7961b78d4b02e7cb61782c7bce7d6de074.diff
LOG: [InstCombine] Add test for #62450 (NFC)
Added:
Modified:
llvm/test/Transforms/InstCombine/ctpop.ll
Removed:
################################################################################
diff --git a/llvm/test/Transforms/InstCombine/ctpop.ll b/llvm/test/Transforms/InstCombine/ctpop.ll
index cf1d72383e69405..a3db7715d183453 100644
--- a/llvm/test/Transforms/InstCombine/ctpop.ll
+++ b/llvm/test/Transforms/InstCombine/ctpop.ll
@@ -475,3 +475,16 @@ define i32 @parity_xor_extra_use2(i32 %arg, i32 %arg1) {
%i5 = xor i32 %i2, %i4
ret i32 %i5
}
+
+define i32 @select_ctpop_zero(i32 %x) {
+; CHECK-LABEL: @select_ctpop_zero(
+; CHECK-NEXT: [[CTPOP:%.*]] = call i32 @llvm.ctpop.i32(i32 [[X:%.*]]), !range [[RNG1]]
+; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], 0
+; CHECK-NEXT: [[RES:%.*]] = select i1 [[CMP]], i32 0, i32 [[CTPOP]]
+; CHECK-NEXT: ret i32 [[RES]]
+;
+ %ctpop = call i32 @llvm.ctpop.i32(i32 %x)
+ %cmp = icmp eq i32 %x, 0
+ %res = select i1 %cmp, i32 0, i32 %ctpop
+ ret i32 %res
+}
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