llvm-mirror/test/CodeGen/AArch64/arm64-vclz.ll
Jessica Paquette f7efb97beb [GlobalISel][AArch64] Legalize + select some llvm.ctlz.* intrinsics
Legalize/select llvm.ctlz.*

Add select-ctlz to show that we actually select them. Update arm64-clrsb.ll and
arm64-vclz.ll to show that we perform valid transformations in optimized builds,
and document where GISel can improve.

Differential Revision: https://reviews.llvm.org/D58155

llvm-svn: 354299
2019-02-18 23:33:24 +00:00

155 lines
5.3 KiB
LLVM

; RUN: llc < %s -mtriple=arm64-eabi -aarch64-neon-syntax=apple | FileCheck %s
; RUN: llc < %s -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel* -mtriple=arm64-eabi -aarch64-neon-syntax=apple | FileCheck %s
; FALLBACK-NOT: remark{{.*}}test_vclz_u8
define <8 x i8> @test_vclz_u8(<8 x i8> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_u8:
; CHECK: clz.8b v0, v0
; CHECK-NEXT: ret
%vclz.i = tail call <8 x i8> @llvm.ctlz.v8i8(<8 x i8> %a, i1 false) nounwind
ret <8 x i8> %vclz.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_s8
define <8 x i8> @test_vclz_s8(<8 x i8> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_s8:
; CHECK: clz.8b v0, v0
; CHECK-NEXT: ret
%vclz.i = tail call <8 x i8> @llvm.ctlz.v8i8(<8 x i8> %a, i1 false) nounwind
ret <8 x i8> %vclz.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_u16
define <4 x i16> @test_vclz_u16(<4 x i16> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_u16:
; CHECK: clz.4h v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <4 x i16> @llvm.ctlz.v4i16(<4 x i16> %a, i1 false) nounwind
ret <4 x i16> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_s16
define <4 x i16> @test_vclz_s16(<4 x i16> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_s16:
; CHECK: clz.4h v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <4 x i16> @llvm.ctlz.v4i16(<4 x i16> %a, i1 false) nounwind
ret <4 x i16> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_u32
define <2 x i32> @test_vclz_u32(<2 x i32> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_u32:
; CHECK: clz.2s v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %a, i1 false) nounwind
ret <2 x i32> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_s32
define <2 x i32> @test_vclz_s32(<2 x i32> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_s32:
; CHECK: clz.2s v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <2 x i32> @llvm.ctlz.v2i32(<2 x i32> %a, i1 false) nounwind
ret <2 x i32> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_u64
define <1 x i64> @test_vclz_u64(<1 x i64> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_u64:
%vclz1.i = tail call <1 x i64> @llvm.ctlz.v1i64(<1 x i64> %a, i1 false) nounwind
ret <1 x i64> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclz_s64
define <1 x i64> @test_vclz_s64(<1 x i64> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclz_s64:
%vclz1.i = tail call <1 x i64> @llvm.ctlz.v1i64(<1 x i64> %a, i1 false) nounwind
ret <1 x i64> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_u8
define <16 x i8> @test_vclzq_u8(<16 x i8> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_u8:
; CHECK: clz.16b v0, v0
; CHECK-NEXT: ret
%vclz.i = tail call <16 x i8> @llvm.ctlz.v16i8(<16 x i8> %a, i1 false) nounwind
ret <16 x i8> %vclz.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_s8
define <16 x i8> @test_vclzq_s8(<16 x i8> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_s8:
; CHECK: clz.16b v0, v0
; CHECK-NEXT: ret
%vclz.i = tail call <16 x i8> @llvm.ctlz.v16i8(<16 x i8> %a, i1 false) nounwind
ret <16 x i8> %vclz.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_u16
define <8 x i16> @test_vclzq_u16(<8 x i16> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_u16:
; CHECK: clz.8h v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <8 x i16> @llvm.ctlz.v8i16(<8 x i16> %a, i1 false) nounwind
ret <8 x i16> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_s16
define <8 x i16> @test_vclzq_s16(<8 x i16> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_s16:
; CHECK: clz.8h v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <8 x i16> @llvm.ctlz.v8i16(<8 x i16> %a, i1 false) nounwind
ret <8 x i16> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_u32
define <4 x i32> @test_vclzq_u32(<4 x i32> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_u32:
; CHECK: clz.4s v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <4 x i32> @llvm.ctlz.v4i32(<4 x i32> %a, i1 false) nounwind
ret <4 x i32> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_s32
define <4 x i32> @test_vclzq_s32(<4 x i32> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_s32:
; CHECK: clz.4s v0, v0
; CHECK-NEXT: ret
%vclz1.i = tail call <4 x i32> @llvm.ctlz.v4i32(<4 x i32> %a, i1 false) nounwind
ret <4 x i32> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_u64
define <2 x i64> @test_vclzq_u64(<2 x i64> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_u64:
%vclz1.i = tail call <2 x i64> @llvm.ctlz.v2i64(<2 x i64> %a, i1 false) nounwind
ret <2 x i64> %vclz1.i
}
; FALLBACK-NOT: remark{{.*}}test_vclzq_s64
define <2 x i64> @test_vclzq_s64(<2 x i64> %a) nounwind readnone ssp {
; CHECK-LABEL: test_vclzq_s64:
%vclz1.i = tail call <2 x i64> @llvm.ctlz.v2i64(<2 x i64> %a, i1 false) nounwind
ret <2 x i64> %vclz1.i
}
declare <2 x i64> @llvm.ctlz.v2i64(<2 x i64>, i1) nounwind readnone
declare <4 x i32> @llvm.ctlz.v4i32(<4 x i32>, i1) nounwind readnone
declare <8 x i16> @llvm.ctlz.v8i16(<8 x i16>, i1) nounwind readnone
declare <16 x i8> @llvm.ctlz.v16i8(<16 x i8>, i1) nounwind readnone
declare <1 x i64> @llvm.ctlz.v1i64(<1 x i64>, i1) nounwind readnone
declare <2 x i32> @llvm.ctlz.v2i32(<2 x i32>, i1) nounwind readnone
declare <4 x i16> @llvm.ctlz.v4i16(<4 x i16>, i1) nounwind readnone
declare <8 x i8> @llvm.ctlz.v8i8(<8 x i8>, i1) nounwind readnone