53 lines
1.6 KiB
LLVM
53 lines
1.6 KiB
LLVM
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; RUN: llc -ppc-gpr-icmps=all -verify-machineinstrs -mcpu=pwr7 < %s | FileCheck %s
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; RUN: llc -ppc-gpr-icmps=all -verify-machineinstrs -mcpu=pwr7 -ppc-gen-isel=false < %s | FileCheck --check-prefix=CHECK-NO-ISEL %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; Function Attrs: nounwind readnone
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define signext i32 @crbitsoff(i32 signext %v1, i32 signext %v2) #0 {
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entry:
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%tobool = icmp ne i32 %v1, 0
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%lnot = icmp eq i32 %v2, 0
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%and3 = and i1 %tobool, %lnot
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%and = zext i1 %and3 to i32
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ret i32 %and
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; CHECK-LABEL: @crbitsoff
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; CHECK-NO-ISEL-LABEL: @crbitsoff
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; CHECK-DAG: cmplwi 3, 0
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; CHECK-DAG: li [[REG2:[0-9]+]], 1
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; CHECK-DAG: cntlzw [[REG3:[0-9]+]],
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; CHECK: iseleq [[REG4:[0-9]+]], 0, [[REG2]]
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; CHECK-NO-ISEL: bc 12, 2, [[TRUE:.LBB[0-9]+]]
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; CHECK-NO-ISEL: ori 4, 5, 0
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; CHECK-NO-ISEL-NEXT: b [[SUCCESSOR:.LBB[0-9]+]]
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; CHECK-NO-ISEL: [[TRUE]]
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; CHECK-NO-ISEL-NEXT: li 4, 0
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; CHECK: and 3, [[REG4]], [[REG3]]
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; CHECK: blr
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}
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define signext i32 @crbitson(i32 signext %v1, i32 signext %v2) #1 {
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entry:
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%tobool = icmp ne i32 %v1, 0
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%lnot = icmp eq i32 %v2, 0
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%and3 = and i1 %tobool, %lnot
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%and = zext i1 %and3 to i32
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ret i32 %and
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; CHECK-LABEL: @crbitson
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; CHECK-NO-ISEL-LABEL: @crbitson
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; CHECK-DAG: cntlzw [[REG1:[0-9]+]], 3
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; CHECK-DAG: cntlzw [[REG2:[0-9]+]], 4
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; CHECK: srwi [[REG3:[0-9]+]], [[REG1]], 5
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; CHECK: srwi [[REG4:[0-9]+]], [[REG2]], 5
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; CHECK: xori [[REG5:[0-9]+]], [[REG3]], 1
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; CHECK: and 3, [[REG5]], [[REG4]]
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; CHECK-NEXT: blr
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}
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attributes #0 = { nounwind readnone "target-features"="-crbits" }
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attributes #1 = { nounwind readnone }
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