[llvm] [GlobalIsel] Visit ICmp (PR #105991)

Amara Emerson via llvm-commits llvm-commits at lists.llvm.org
Sun Aug 25 20:43:22 PDT 2024


Thorsten =?utf-8?q?Sch=C3=BCtt?= <schuett at gmail.com>,
Thorsten =?utf-8?q?Sch=C3=BCtt?= <schuett at gmail.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/105991 at github.com>


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@@ -2655,13 +2655,15 @@ define i8 @atomicrmw_max_i8(ptr %ptr, i8 %rhs) {
 define i8 @atomicrmw_umin_i8(ptr %ptr, i8 %rhs) {
 ; CHECK-NOLSE-O1-LABEL: atomicrmw_umin_i8:
 ; CHECK-NOLSE-O1:       ; %bb.0:
-; CHECK-NOLSE-O1-NEXT:    and w9, w1, #0xff
+; CHECK-NOLSE-O1-NEXT:    ; kill: def $w1 killed $w1 def $x1
+; CHECK-NOLSE-O1-NEXT:    and x9, x1, #0xff
 ; CHECK-NOLSE-O1-NEXT:  LBB35_1: ; %atomicrmw.start
 ; CHECK-NOLSE-O1-NEXT:    ; =>This Inner Loop Header: Depth=1
-; CHECK-NOLSE-O1-NEXT:    ldaxrb w8, [x0]
-; CHECK-NOLSE-O1-NEXT:    and w8, w8, #0xff
-; CHECK-NOLSE-O1-NEXT:    cmp w8, w9
-; CHECK-NOLSE-O1-NEXT:    csel w10, w8, w9, lo
+; CHECK-NOLSE-O1-NEXT:    ldaxrb w10, [x0]
----------------
aemerson wrote:

Regression?

https://github.com/llvm/llvm-project/pull/105991


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