================
@@ -33,8 +33,7 @@ define noundef i1 @logger(i32 noundef %logLevel, ptr %ea, ptr
%pll) {
; CHECK-GI-NEXT: b.hi .LBB1_2
; CHECK-GI-NEXT: // %bb.1: // %land.rhs
; CHECK-GI-NEXT: ldr x8, [x1]
-; CHECK-GI-NEXT: ldrb w8, [x8]
-; CHECK-GI-NEXT: and w0, w8, #0x1
+; CHECK-GI-NEXT: ldrb w0, [x8]
----------------
tobias-stadler wrote:
The immediate DCEing and better ordering of combines prevents the
PreLegalizerCombiner from generating a bunch of useless artifacts that it can't
combine away again. These artifacts are converted into G_AND by the
ArtifactCombiner, which can't be combined away by the redundant_and combine,
because KnownBits can't look through the implicit anyext of the G_LOAD. We are
probably missing some combines that convert the load into sext/zext versions.
https://github.com/llvm/llvm-project/pull/102167
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