280 lines
11 KiB
LLVM
280 lines
11 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx,+slow-unaligned-mem-32 | FileCheck %s --check-prefix=AVXSLOW
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx,-slow-unaligned-mem-32 | FileCheck %s --check-prefix=AVXFAST
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx2 | FileCheck %s --check-prefix=AVX2
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; Don't generate an unaligned 32-byte load on this test if that is slower than two 16-byte loads.
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define <8 x float> @load32bytes(<8 x float>* %Ap) {
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; AVXSLOW-LABEL: load32bytes:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vmovaps (%rdi), %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, 16(%rdi), %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: load32bytes:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vmovups (%rdi), %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: load32bytes:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vmovups (%rdi), %ymm0
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; AVX2-NEXT: retq
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%A = load <8 x float>, <8 x float>* %Ap, align 16
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ret <8 x float> %A
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}
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; Don't generate an unaligned 32-byte store on this test if that is slower than two 16-byte loads.
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define void @store32bytes(<8 x float> %A, <8 x float>* %P) {
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; AVXSLOW-LABEL: store32bytes:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vextractf128 $1, %ymm0, 16(%rdi)
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; AVXSLOW-NEXT: vmovaps %xmm0, (%rdi)
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; AVXSLOW-NEXT: vzeroupper
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: store32bytes:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vmovups %ymm0, (%rdi)
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; AVXFAST-NEXT: vzeroupper
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: store32bytes:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vmovups %ymm0, (%rdi)
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; AVX2-NEXT: vzeroupper
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; AVX2-NEXT: retq
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store <8 x float> %A, <8 x float>* %P, align 16
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ret void
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}
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; Merge two consecutive 16-byte subvector loads into a single 32-byte load if it's faster.
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define <8 x float> @combine_16_byte_loads_no_intrinsic(<4 x float>* %ptr) {
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; AVXSLOW-LABEL: combine_16_byte_loads_no_intrinsic:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vmovups 48(%rdi), %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, 64(%rdi), %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_no_intrinsic:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vmovups 48(%rdi), %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_no_intrinsic:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vmovups 48(%rdi), %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 3
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%ptr2 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 4
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%v1 = load <4 x float>, <4 x float>* %ptr1, align 1
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%v2 = load <4 x float>, <4 x float>* %ptr2, align 1
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%v3 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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ret <8 x float> %v3
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}
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; If the first load is 32-byte aligned, then the loads should be merged in all cases.
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define <8 x float> @combine_16_byte_loads_aligned(<4 x float>* %ptr) {
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; AVXSLOW-LABEL: combine_16_byte_loads_aligned:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vmovaps 48(%rdi), %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_aligned:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vmovaps 48(%rdi), %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_aligned:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vmovaps 48(%rdi), %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 3
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%ptr2 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 4
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%v1 = load <4 x float>, <4 x float>* %ptr1, align 32
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%v2 = load <4 x float>, <4 x float>* %ptr2, align 1
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%v3 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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ret <8 x float> %v3
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}
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; Swap the order of the shufflevector operands to ensure that the pattern still matches.
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define <8 x float> @combine_16_byte_loads_no_intrinsic_swap(<4 x float>* %ptr) {
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; AVXSLOW-LABEL: combine_16_byte_loads_no_intrinsic_swap:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vmovups 64(%rdi), %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, 80(%rdi), %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_no_intrinsic_swap:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vmovups 64(%rdi), %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_no_intrinsic_swap:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vmovups 64(%rdi), %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 4
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%ptr2 = getelementptr inbounds <4 x float>, <4 x float>* %ptr, i64 5
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%v1 = load <4 x float>, <4 x float>* %ptr1, align 1
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%v2 = load <4 x float>, <4 x float>* %ptr2, align 1
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%v3 = shufflevector <4 x float> %v2, <4 x float> %v1, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3>
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ret <8 x float> %v3
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}
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; Check each element type other than float to make sure it is handled correctly.
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; Use the loaded values with an 'add' to make sure we're using the correct load type.
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; Don't generate 32-byte loads for integer ops unless we have AVX2.
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define <4 x i64> @combine_16_byte_loads_i64(<2 x i64>* %ptr, <4 x i64> %x) {
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; AVXSLOW-LABEL: combine_16_byte_loads_i64:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXSLOW-NEXT: vpaddq 96(%rdi), %xmm1, %xmm1
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; AVXSLOW-NEXT: vpaddq 80(%rdi), %xmm0, %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_i64:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXFAST-NEXT: vpaddq 96(%rdi), %xmm1, %xmm1
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; AVXFAST-NEXT: vpaddq 80(%rdi), %xmm0, %xmm0
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; AVXFAST-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_i64:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpaddq 80(%rdi), %ymm0, %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <2 x i64>, <2 x i64>* %ptr, i64 5
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%ptr2 = getelementptr inbounds <2 x i64>, <2 x i64>* %ptr, i64 6
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%v1 = load <2 x i64>, <2 x i64>* %ptr1, align 1
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%v2 = load <2 x i64>, <2 x i64>* %ptr2, align 1
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%v3 = shufflevector <2 x i64> %v1, <2 x i64> %v2, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%v4 = add <4 x i64> %v3, %x
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ret <4 x i64> %v4
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}
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define <8 x i32> @combine_16_byte_loads_i32(<4 x i32>* %ptr, <8 x i32> %x) {
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; AVXSLOW-LABEL: combine_16_byte_loads_i32:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXSLOW-NEXT: vpaddd 112(%rdi), %xmm1, %xmm1
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; AVXSLOW-NEXT: vpaddd 96(%rdi), %xmm0, %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_i32:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXFAST-NEXT: vpaddd 112(%rdi), %xmm1, %xmm1
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; AVXFAST-NEXT: vpaddd 96(%rdi), %xmm0, %xmm0
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; AVXFAST-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_i32:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpaddd 96(%rdi), %ymm0, %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <4 x i32>, <4 x i32>* %ptr, i64 6
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%ptr2 = getelementptr inbounds <4 x i32>, <4 x i32>* %ptr, i64 7
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%v1 = load <4 x i32>, <4 x i32>* %ptr1, align 1
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%v2 = load <4 x i32>, <4 x i32>* %ptr2, align 1
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%v3 = shufflevector <4 x i32> %v1, <4 x i32> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%v4 = add <8 x i32> %v3, %x
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ret <8 x i32> %v4
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}
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define <16 x i16> @combine_16_byte_loads_i16(<8 x i16>* %ptr, <16 x i16> %x) {
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; AVXSLOW-LABEL: combine_16_byte_loads_i16:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXSLOW-NEXT: vpaddw 128(%rdi), %xmm1, %xmm1
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; AVXSLOW-NEXT: vpaddw 112(%rdi), %xmm0, %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_i16:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXFAST-NEXT: vpaddw 128(%rdi), %xmm1, %xmm1
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; AVXFAST-NEXT: vpaddw 112(%rdi), %xmm0, %xmm0
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; AVXFAST-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_i16:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpaddw 112(%rdi), %ymm0, %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <8 x i16>, <8 x i16>* %ptr, i64 7
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%ptr2 = getelementptr inbounds <8 x i16>, <8 x i16>* %ptr, i64 8
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%v1 = load <8 x i16>, <8 x i16>* %ptr1, align 1
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%v2 = load <8 x i16>, <8 x i16>* %ptr2, align 1
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%v3 = shufflevector <8 x i16> %v1, <8 x i16> %v2, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
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%v4 = add <16 x i16> %v3, %x
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ret <16 x i16> %v4
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}
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define <32 x i8> @combine_16_byte_loads_i8(<16 x i8>* %ptr, <32 x i8> %x) {
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; AVXSLOW-LABEL: combine_16_byte_loads_i8:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXSLOW-NEXT: vpaddb 144(%rdi), %xmm1, %xmm1
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; AVXSLOW-NEXT: vpaddb 128(%rdi), %xmm0, %xmm0
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; AVXSLOW-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_i8:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vextractf128 $1, %ymm0, %xmm1
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; AVXFAST-NEXT: vpaddb 144(%rdi), %xmm1, %xmm1
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; AVXFAST-NEXT: vpaddb 128(%rdi), %xmm0, %xmm0
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; AVXFAST-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_i8:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpaddb 128(%rdi), %ymm0, %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <16 x i8>, <16 x i8>* %ptr, i64 8
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%ptr2 = getelementptr inbounds <16 x i8>, <16 x i8>* %ptr, i64 9
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%v1 = load <16 x i8>, <16 x i8>* %ptr1, align 1
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%v2 = load <16 x i8>, <16 x i8>* %ptr2, align 1
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%v3 = shufflevector <16 x i8> %v1, <16 x i8> %v2, <32 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31>
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%v4 = add <32 x i8> %v3, %x
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ret <32 x i8> %v4
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}
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define <4 x double> @combine_16_byte_loads_double(<2 x double>* %ptr, <4 x double> %x) {
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; AVXSLOW-LABEL: combine_16_byte_loads_double:
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; AVXSLOW: # %bb.0:
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; AVXSLOW-NEXT: vmovups 144(%rdi), %xmm1
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; AVXSLOW-NEXT: vinsertf128 $1, 160(%rdi), %ymm1, %ymm1
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; AVXSLOW-NEXT: vaddpd %ymm0, %ymm1, %ymm0
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; AVXSLOW-NEXT: retq
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;
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; AVXFAST-LABEL: combine_16_byte_loads_double:
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; AVXFAST: # %bb.0:
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; AVXFAST-NEXT: vaddpd 144(%rdi), %ymm0, %ymm0
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; AVXFAST-NEXT: retq
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;
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; AVX2-LABEL: combine_16_byte_loads_double:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vaddpd 144(%rdi), %ymm0, %ymm0
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; AVX2-NEXT: retq
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%ptr1 = getelementptr inbounds <2 x double>, <2 x double>* %ptr, i64 9
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%ptr2 = getelementptr inbounds <2 x double>, <2 x double>* %ptr, i64 10
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%v1 = load <2 x double>, <2 x double>* %ptr1, align 1
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%v2 = load <2 x double>, <2 x double>* %ptr2, align 1
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%v3 = shufflevector <2 x double> %v1, <2 x double> %v2, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%v4 = fadd <4 x double> %v3, %x
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ret <4 x double> %v4
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}
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