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Add freeze(and x, const) case to codegenprepare's freeze-cmp.ll

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This commit is contained in:
Juneyoung Lee 2020-03-25 17:18:19 +09:00
parent 28a42dd1b9
commit e951a48996
1 changed files with 26 additions and 0 deletions
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26
llvm/test/Transforms/CodeGenPrepare/X86/freeze-cmp.ll
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@ -105,5 +105,31 @@ define i1 @fcmp_nan(float %a) {
ret i1 %fr
}
define void @and(i32 %flag) {
; CHECK-LABEL: @and(
; CHECK-NEXT: [[V:%.*]] = and i32 [[FLAG:%.*]], 1
; CHECK-NEXT: [[FR:%.*]] = freeze i32 [[V]]
; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[FR]], 0
; CHECK-NEXT: br i1 [[C]], label [[A:%.*]], label [[B:%.*]]
; CHECK: A:
; CHECK-NEXT: call void @g1()
; CHECK-NEXT: ret void
; CHECK: B:
; CHECK-NEXT: call void @g2()
; CHECK-NEXT: ret void
;
%v = and i32 %flag, 1
%c = icmp eq i32 %v, 0
%fr = freeze i1 %c
br i1 %fr, label %A, label %B
A:
call void @g1()
ret void
B:
call void @g2()
ret void
}
declare void @g1()
declare void @g2()