derek.holloway
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45 lines
1.3 KiB
LLVM
45 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
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; RUN: llc < %s --mtriple=aarch64 | FileCheck %s
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declare i8 @llvm.ctlz.i8(i8, i1 immarg)
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declare <8 x i8> @llvm.ctlz.v8i8(<8 x i8>, i1 immarg)
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declare i11 @llvm.ctlz.i11(i11, i1 immarg)
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define i32 @clz_nzu8(i8 %self) {
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; CHECK-LABEL: clz_nzu8:
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; CHECK: // %bb.0: // %start
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; CHECK-NEXT: lsl w8, w0, #24
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; CHECK-NEXT: clz w0, w8
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; CHECK-NEXT: ret
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start:
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%ctlz_res = call i8 @llvm.ctlz.i8(i8 %self, i1 true)
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%ret = zext i8 %ctlz_res to i32
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ret i32 %ret
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}
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; non standard bit size argument to ctlz
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define i32 @clz_nzu11(i11 %self) {
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; CHECK-LABEL: clz_nzu11:
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; CHECK: // %bb.0:
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; CHECK-NEXT: lsl w8, w0, #21
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; CHECK-NEXT: clz w0, w8
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; CHECK-NEXT: ret
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%ctlz_res = call i11 @llvm.ctlz.i11(i11 %self, i1 true)
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%ret = zext i11 %ctlz_res to i32
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ret i32 %ret
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}
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; vector type argument to ctlz intrinsic
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define <8 x i32> @clz_vec_nzu8(<8 x i8> %self) {
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; CHECK-LABEL: clz_vec_nzu8:
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; CHECK: // %bb.0:
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; CHECK-NEXT: clz v0.8b, v0.8b
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; CHECK-NEXT: ushll v0.8h, v0.8b, #0
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; CHECK-NEXT: ushll2 v1.4s, v0.8h, #0
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; CHECK-NEXT: ushll v0.4s, v0.4h, #0
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; CHECK-NEXT: ret
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%ctlz_res = call <8 x i8> @llvm.ctlz.v8i8(<8 x i8> %self, i1 true)
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%ret = zext <8 x i8> %ctlz_res to <8 x i32>
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ret <8 x i32> %ret
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}
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