24 lines
530 B
LLVM
24 lines
530 B
LLVM
; RUN: llc -march=arc < %s | FileCheck %s
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target triple = "arc"
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declare i32 @llvm.ctlz.i32(i32, i1)
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declare i32 @llvm.cttz.i32(i32, i1)
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; CHECK-LABEL: clz32:
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; CHECK: fls.f %r0, %r0
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; CHECK-NEXT: mov.eq %r0, 32
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; CHECK-NEXT: rsub.ne %r0, %r0, 31
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define i32 @clz32(i32 %x) {
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%a = call i32 @llvm.ctlz.i32(i32 %x, i1 false)
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ret i32 %a
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}
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; CHECK-LABEL: ctz32:
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; CHECK: ffs.f %r0, %r0
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; CHECK-NEXT: mov.eq %r0, 32
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define i32 @ctz32(i32 %x) {
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%a = call i32 @llvm.cttz.i32(i32 %x, i1 false)
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ret i32 %a
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}
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