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https://github.com/c64scene-ar/llvm-6502.git
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cdc4c42bac
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236262 91177308-0d34-0410-b5e6-96231b3b80d8
156 lines
5.2 KiB
LLVM
156 lines
5.2 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=avx < %s | FileCheck %s -check-prefix=CHECK --check-prefix=AVX
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; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=avx2 < %s | FileCheck %s -check-prefix=CHECK --check-prefix=AVX2
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; Check constant loads of every 128-bit and 256-bit vector type
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; for size optimization using splat ops available with AVX and AVX2.
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; There is no AVX broadcast from double to 128-bit vector because movddup has been around since SSE3 (grrr).
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define <2 x double> @splat_v2f64(<2 x double> %x) #0 {
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%add = fadd <2 x double> %x, <double 1.0, double 1.0>
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ret <2 x double> %add
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; CHECK-LABEL: splat_v2f64
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; CHECK: vmovddup
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; CHECK: vaddpd
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; CHECK-NEXT: retq
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}
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define <4 x double> @splat_v4f64(<4 x double> %x) #0 {
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%add = fadd <4 x double> %x, <double 1.0, double 1.0, double 1.0, double 1.0>
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ret <4 x double> %add
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; CHECK-LABEL: splat_v4f64
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; CHECK: vbroadcastsd
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; CHECK-NEXT: vaddpd
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; CHECK-NEXT: retq
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}
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define <4 x float> @splat_v4f32(<4 x float> %x) #0 {
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%add = fadd <4 x float> %x, <float 1.0, float 1.0, float 1.0, float 1.0>
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ret <4 x float> %add
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; CHECK-LABEL: splat_v4f32
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; CHECK: vbroadcastss
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; CHECK-NEXT: vaddps
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; CHECK-NEXT: retq
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}
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define <8 x float> @splat_v8f32(<8 x float> %x) #0 {
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%add = fadd <8 x float> %x, <float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0>
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ret <8 x float> %add
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; CHECK-LABEL: splat_v8f32
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; CHECK: vbroadcastss
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; CHECK-NEXT: vaddps
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; CHECK-NEXT: retq
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}
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; AVX can't do integer splats, so fake it: use vmovddup to splat 64-bit value.
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; We also generate vmovddup for AVX2 because it's one byte smaller than vpbroadcastq.
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define <2 x i64> @splat_v2i64(<2 x i64> %x) #0 {
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%add = add <2 x i64> %x, <i64 1, i64 1>
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ret <2 x i64> %add
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; CHECK-LABEL: splat_v2i64
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; CHECK: vmovddup
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; CHECK: vpaddq
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; CHECK-NEXT: retq
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}
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; AVX can't do 256-bit integer ops, so we split this into two 128-bit vectors,
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; and then we fake it: use vmovddup to splat 64-bit value.
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define <4 x i64> @splat_v4i64(<4 x i64> %x) #0 {
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%add = add <4 x i64> %x, <i64 1, i64 1, i64 1, i64 1>
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ret <4 x i64> %add
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; CHECK-LABEL: splat_v4i64
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; AVX: vmovddup
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; AVX: vpaddq
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; AVX: vpaddq
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; AVX2: vpbroadcastq
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; AVX2: vpaddq
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; CHECK: retq
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}
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; AVX can't do integer splats, so fake it: use vbroadcastss to splat 32-bit value.
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define <4 x i32> @splat_v4i32(<4 x i32> %x) #0 {
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%add = add <4 x i32> %x, <i32 1, i32 1, i32 1, i32 1>
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ret <4 x i32> %add
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; CHECK-LABEL: splat_v4i32
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; AVX: vbroadcastss
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; AVX2: vpbroadcastd
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; CHECK-NEXT: vpaddd
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; CHECK-NEXT: retq
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}
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; AVX can't do integer splats, so fake it: use vbroadcastss to splat 32-bit value.
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define <8 x i32> @splat_v8i32(<8 x i32> %x) #0 {
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%add = add <8 x i32> %x, <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
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ret <8 x i32> %add
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; CHECK-LABEL: splat_v8i32
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; AVX: vbroadcastss
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; AVX: vpaddd
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; AVX: vpaddd
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; AVX2: vpbroadcastd
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; AVX2: vpaddd
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; CHECK: retq
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}
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; AVX can't do integer splats, and there's no broadcast fakery for 16-bit. Could use pshuflw, etc?
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define <8 x i16> @splat_v8i16(<8 x i16> %x) #0 {
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%add = add <8 x i16> %x, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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ret <8 x i16> %add
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; CHECK-LABEL: splat_v8i16
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; AVX-NOT: broadcast
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; AVX2: vpbroadcastw
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; CHECK: vpaddw
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; CHECK-NEXT: retq
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}
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; AVX can't do integer splats, and there's no broadcast fakery for 16-bit. Could use pshuflw, etc?
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define <16 x i16> @splat_v16i16(<16 x i16> %x) #0 {
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%add = add <16 x i16> %x, <i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1, i16 1>
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ret <16 x i16> %add
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; CHECK-LABEL: splat_v16i16
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; AVX-NOT: broadcast
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; AVX: vpaddw
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; AVX: vpaddw
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; AVX2: vpbroadcastw
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; AVX2: vpaddw
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; CHECK: retq
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}
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; AVX can't do integer splats, and there's no broadcast fakery for 8-bit. Could use pshufb, etc?
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define <16 x i8> @splat_v16i8(<16 x i8> %x) #0 {
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%add = add <16 x i8> %x, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
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ret <16 x i8> %add
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; CHECK-LABEL: splat_v16i8
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; AVX-NOT: broadcast
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; AVX2: vpbroadcastb
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; CHECK: vpaddb
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; CHECK-NEXT: retq
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}
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; AVX can't do integer splats, and there's no broadcast fakery for 8-bit. Could use pshufb, etc?
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define <32 x i8> @splat_v32i8(<32 x i8> %x) #0 {
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%add = add <32 x i8> %x, <i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1, i8 1>
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ret <32 x i8> %add
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; CHECK-LABEL: splat_v32i8
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; AVX-NOT: broadcast
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; AVX: vpaddb
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; AVX: vpaddb
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; AVX2: vpbroadcastb
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; AVX2: vpaddb
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; CHECK: retq
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}
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; PR23259: Verify that ISel doesn't crash with a 'fatal error in backend'
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; due to a missing AVX pattern to select a v2i64 X86ISD::BROADCAST of a
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; loadi64 with multiple uses.
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@A = common global <3 x i64> zeroinitializer, align 32
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define <8 x i64> @pr23259() #0 {
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entry:
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%0 = load <4 x i64>, <4 x i64>* bitcast (<3 x i64>* @A to <4 x i64>*), align 32
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%1 = shufflevector <4 x i64> %0, <4 x i64> undef, <3 x i32> <i32 undef, i32 undef, i32 2>
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%shuffle = shufflevector <3 x i64> <i64 1, i64 undef, i64 undef>, <3 x i64> %1, <8 x i32> <i32 5, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0>
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ret <8 x i64> %shuffle
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}
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attributes #0 = { optsize }
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