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Differential D95103

[DAGCombiner] Precommit test case for D95086
ClosedPublic

Authored by Carrot on Jan 20 2021, 3:41 PM.

Details

Reviewers
xbolva00
Commits
rG96296d9220ee: [DAGCombiner] Precommit test case for D95086
Summary

This is the test case for D95086 with worse result.

Diff Detail

Event Timeline

Carrot created this revision.Jan 20 2021, 3:41 PM
Herald added a subscriber: pengfei. · View Herald TranscriptJan 20 2021, 3:41 PM
Carrot requested review of this revision.Jan 20 2021, 3:41 PM
Herald added a project: Restricted Project. · View Herald TranscriptJan 20 2021, 3:41 PM
Herald added a subscriber: llvm-commits. · View Herald Transcript
xbolva00 accepted this revision.Jan 20 2021, 3:44 PM
This revision is now accepted and ready to land.Jan 20 2021, 3:44 PM
This revision was landed with ongoing or failed builds.Jan 20 2021, 5:17 PM
Closed by commit rG96296d9220ee: [DAGCombiner] Precommit test case for D95086 (authored by Carrot). · Explain Why
This revision was automatically updated to reflect the committed changes.
Carrot added a commit: rG96296d9220ee: [DAGCombiner] Precommit test case for D95086.
Harbormaster completed remote builds in B85994: Diff 318039.Jan 20 2021, 5:20 PM

Revision Contents

PathSize
llvm/
test/
CodeGen/
X86/
21 lines

Diff 318071

llvm/test/CodeGen/X86/select-ext.ll

  • This file was added.
; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s
; TODO: (zext(select c, load1, load2)) -> (select c, zextload1, zextload2)
; CHECK-LABEL: foo
; CHECK: movzbl (%rdi), %eax
; CHECK-NEXT: movzbl 1(%rdi), %ecx
; CHECK-NEXT: testl %esi, %esi
; CHECK-NEXT: cmovel %eax, %ecx
; CHECK-NEXT: movzbl %cl, %eax
; CHECK-NEXT: retq
define i64 @foo(i8* %p, i1 zeroext %c) {
%ld1 = load volatile i8, i8* %p
%arrayidx1 = getelementptr inbounds i8, i8* %p, i64 1
%ld2 = load volatile i8, i8* %arrayidx1
%cond.v = select i1 %c, i8 %ld2, i8 %ld1
%cond = zext i8 %cond.v to i64
ret i64 %cond
}