33 lines
795 B
LLVM
33 lines
795 B
LLVM
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; 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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declare i64 @llvm.readcyclecounter()
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; CHECK-LABEL: test_ctlz_i32:
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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 @test_ctlz_i32(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: test_cttz_i32:
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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 @test_cttz_i32(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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; CHECK-LABEL: test_readcyclecounter:
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; CHECK: lr %r0, [33]
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; CHECK-NEXT: mov %r1, 0
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define i64 @test_readcyclecounter() nounwind {
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%a = call i64 @llvm.readcyclecounter()
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ret i64 %a
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}
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