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llvm-mirror/test/CodeGen/X86/avx-splat.ll
Kyle Butt 6035a9f12a Revert "CodeGen: Allow small copyable blocks to "break" the CFG."
This reverts commit ada6595a526d71df04988eb0a4b4fe84df398ded.

This needs a simple probability check because there are some cases where it is
not profitable.

llvm-svn: 291695
2017-01-11 19:55:19 +00:00

174 lines
6.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mattr=+avx | FileCheck %s
define <32 x i8> @funcA(<32 x i8> %a) nounwind uwtable readnone ssp {
; CHECK-LABEL: funcA:
; CHECK: ## BB#0: ## %entry
; CHECK-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5]
; CHECK-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm0
; CHECK-NEXT: retq
entry:
%shuffle = shufflevector <32 x i8> %a, <32 x i8> undef, <32 x i32> <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
ret <32 x i8> %shuffle
}
define <16 x i16> @funcB(<16 x i16> %a) nounwind uwtable readnone ssp {
; CHECK-LABEL: funcB:
; CHECK: ## BB#0: ## %entry
; CHECK-NEXT: vpshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,5,5,5,5]
; CHECK-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[2,2,3,3]
; CHECK-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm0
; CHECK-NEXT: retq
entry:
%shuffle = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
ret <16 x i16> %shuffle
}
define <4 x i64> @funcC(i64 %q) nounwind uwtable readnone ssp {
; CHECK-LABEL: funcC:
; CHECK: ## BB#0: ## %entry
; CHECK-NEXT: vmovq %rdi, %xmm0
; CHECK-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,1,0,1]
; CHECK-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm0
; CHECK-NEXT: retq
entry:
%vecinit.i = insertelement <4 x i64> undef, i64 %q, i32 0
%vecinit2.i = insertelement <4 x i64> %vecinit.i, i64 %q, i32 1
%vecinit4.i = insertelement <4 x i64> %vecinit2.i, i64 %q, i32 2
%vecinit6.i = insertelement <4 x i64> %vecinit4.i, i64 %q, i32 3
ret <4 x i64> %vecinit6.i
}
define <4 x double> @funcD(double %q) nounwind uwtable readnone ssp {
; CHECK-LABEL: funcD:
; CHECK: ## BB#0: ## %entry
; CHECK-NEXT: vmovddup {{.*#+}} xmm0 = xmm0[0,0]
; CHECK-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm0
; CHECK-NEXT: retq
entry:
%vecinit.i = insertelement <4 x double> undef, double %q, i32 0
%vecinit2.i = insertelement <4 x double> %vecinit.i, double %q, i32 1
%vecinit4.i = insertelement <4 x double> %vecinit2.i, double %q, i32 2
%vecinit6.i = insertelement <4 x double> %vecinit4.i, double %q, i32 3
ret <4 x double> %vecinit6.i
}
; Test this turns into a broadcast:
; shuffle (scalar_to_vector (load (ptr + 4))), undef, <0, 0, 0, 0>
;
define <8 x float> @funcE() nounwind {
; CHECK-LABEL: funcE:
; CHECK: ## BB#0: ## %for_exit499
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: ## implicit-def: %YMM0
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne LBB4_2
; CHECK-NEXT: ## BB#1: ## %load.i1247
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: movq %rsp, %rbp
; CHECK-NEXT: andq $-32, %rsp
; CHECK-NEXT: subq $1312, %rsp ## imm = 0x520
; CHECK-NEXT: vbroadcastss {{[0-9]+}}(%rsp), %ymm0
; CHECK-NEXT: movq %rbp, %rsp
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: LBB4_2: ## %__load_and_broadcast_32.exit1249
; CHECK-NEXT: retq
allocas:
%udx495 = alloca [18 x [18 x float]], align 32
br label %for_test505.preheader
for_test505.preheader: ; preds = %for_test505.preheader, %allocas
br i1 undef, label %for_exit499, label %for_test505.preheader
for_exit499: ; preds = %for_test505.preheader
br i1 undef, label %__load_and_broadcast_32.exit1249, label %load.i1247
load.i1247: ; preds = %for_exit499
%ptr1227 = getelementptr [18 x [18 x float]], [18 x [18 x float]]* %udx495, i64 0, i64 1, i64 1
%ptr.i1237 = bitcast float* %ptr1227 to i32*
%val.i1238 = load i32, i32* %ptr.i1237, align 4
%ret6.i1245 = insertelement <8 x i32> undef, i32 %val.i1238, i32 6
%ret7.i1246 = insertelement <8 x i32> %ret6.i1245, i32 %val.i1238, i32 7
%phitmp = bitcast <8 x i32> %ret7.i1246 to <8 x float>
br label %__load_and_broadcast_32.exit1249
__load_and_broadcast_32.exit1249: ; preds = %load.i1247, %for_exit499
%load_broadcast12281250 = phi <8 x float> [ %phitmp, %load.i1247 ], [ undef, %for_exit499 ]
ret <8 x float> %load_broadcast12281250
}
define <8 x float> @funcF(i32 %val) nounwind {
; CHECK-LABEL: funcF:
; CHECK: ## BB#0:
; CHECK-NEXT: vmovd %edi, %xmm0
; CHECK-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,1,0,0]
; CHECK-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm0
; CHECK-NEXT: retq
%ret6 = insertelement <8 x i32> undef, i32 %val, i32 6
%ret7 = insertelement <8 x i32> %ret6, i32 %val, i32 7
%tmp = bitcast <8 x i32> %ret7 to <8 x float>
ret <8 x float> %tmp
}
define <8 x float> @funcG(<8 x float> %a) nounwind uwtable readnone ssp {
; CHECK-LABEL: funcG:
; CHECK: ## BB#0: ## %entry
; CHECK-NEXT: vpermilps {{.*#+}} xmm0 = xmm0[0,0,0,0]
; CHECK-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm0
; CHECK-NEXT: retq
entry:
%shuffle = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0, i32 0>
ret <8 x float> %shuffle
}
define <8 x float> @funcH(<8 x float> %a) nounwind uwtable readnone ssp {
; CHECK-LABEL: funcH:
; CHECK: ## BB#0: ## %entry
; CHECK-NEXT: vpermilps {{.*#+}} ymm0 = ymm0[1,1,1,1,5,5,5,5]
; CHECK-NEXT: vperm2f128 {{.*#+}} ymm0 = ymm0[2,3,2,3]
; CHECK-NEXT: retq
entry:
%shuffle = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5, i32 5>
ret <8 x float> %shuffle
}
define <2 x double> @splat_load_2f64_11(<2 x double>* %ptr) {
; CHECK-LABEL: splat_load_2f64_11:
; CHECK: ## BB#0:
; CHECK-NEXT: vmovddup {{.*#+}} xmm0 = mem[0,0]
; CHECK-NEXT: retq
%x = load <2 x double>, <2 x double>* %ptr
%x1 = shufflevector <2 x double> %x, <2 x double> undef, <2 x i32> <i32 1, i32 1>
ret <2 x double> %x1
}
define <4 x double> @splat_load_4f64_2222(<4 x double>* %ptr) {
; CHECK-LABEL: splat_load_4f64_2222:
; CHECK: ## BB#0:
; CHECK-NEXT: vbroadcastsd 16(%rdi), %ymm0
; CHECK-NEXT: retq
%x = load <4 x double>, <4 x double>* %ptr
%x1 = shufflevector <4 x double> %x, <4 x double> undef, <4 x i32> <i32 2, i32 2, i32 2, i32 2>
ret <4 x double> %x1
}
define <4 x float> @splat_load_4f32_0000(<4 x float>* %ptr) {
; CHECK-LABEL: splat_load_4f32_0000:
; CHECK: ## BB#0:
; CHECK-NEXT: vbroadcastss (%rdi), %xmm0
; CHECK-NEXT: retq
%x = load <4 x float>, <4 x float>* %ptr
%x1 = shufflevector <4 x float> %x, <4 x float> undef, <4 x i32> <i32 0, i32 0, i32 0, i32 0>
ret <4 x float> %x1
}
define <8 x float> @splat_load_8f32_77777777(<8 x float>* %ptr) {
; CHECK-LABEL: splat_load_8f32_77777777:
; CHECK: ## BB#0:
; CHECK-NEXT: vbroadcastss 28(%rdi), %ymm0
; CHECK-NEXT: retq
%x = load <8 x float>, <8 x float>* %ptr
%x1 = shufflevector <8 x float> %x, <8 x float> undef, <8 x i32> <i32 7, i32 7, i32 7, i32 7, i32 7, i32 7, i32 7, i32 7>
ret <8 x float> %x1
}