153 lines
6.3 KiB
LLVM
153 lines
6.3 KiB
LLVM
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; 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=ALL --check-prefix=FAST32
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+slow-unaligned-mem-32 | FileCheck %s --check-prefix=ALL --check-prefix=SLOW32
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define <4 x float> @merge_2_floats(float* nocapture %p) nounwind readonly {
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; ALL-LABEL: merge_2_floats:
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; ALL: # %bb.0:
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; ALL-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
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; ALL-NEXT: retq
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%tmp1 = load float, float* %p
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%vecins = insertelement <4 x float> undef, float %tmp1, i32 0
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%add.ptr = getelementptr float, float* %p, i32 1
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%tmp5 = load float, float* %add.ptr
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%vecins7 = insertelement <4 x float> %vecins, float %tmp5, i32 1
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ret <4 x float> %vecins7
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}
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; Test-case generated due to a crash when trying to treat loading the first
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; two i64s of a <4 x i64> as a load of two i32s.
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define <4 x i64> @merge_2_floats_into_4() {
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; ALL-LABEL: merge_2_floats_into_4:
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; ALL: # %bb.0:
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; ALL-NEXT: movq (%rax), %rax
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; ALL-NEXT: vmovups (%rax), %xmm0
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; ALL-NEXT: retq
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%1 = load i64*, i64** undef, align 8
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%2 = getelementptr inbounds i64, i64* %1, i64 0
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%3 = load i64, i64* %2
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%4 = insertelement <4 x i64> undef, i64 %3, i32 0
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%5 = load i64*, i64** undef, align 8
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%6 = getelementptr inbounds i64, i64* %5, i64 1
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%7 = load i64, i64* %6
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%8 = insertelement <4 x i64> %4, i64 %7, i32 1
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%9 = shufflevector <4 x i64> %8, <4 x i64> undef, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
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ret <4 x i64> %9
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}
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define <4 x float> @merge_4_floats(float* %ptr) {
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; ALL-LABEL: merge_4_floats:
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; ALL: # %bb.0:
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; ALL-NEXT: vmovups (%rdi), %xmm0
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; ALL-NEXT: retq
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%a = load float, float* %ptr, align 8
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%vec = insertelement <4 x float> undef, float %a, i32 0
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%idx1 = getelementptr inbounds float, float* %ptr, i64 1
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%b = load float, float* %idx1, align 8
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%vec2 = insertelement <4 x float> %vec, float %b, i32 1
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%idx3 = getelementptr inbounds float, float* %ptr, i64 2
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%c = load float, float* %idx3, align 8
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%vec4 = insertelement <4 x float> %vec2, float %c, i32 2
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%idx5 = getelementptr inbounds float, float* %ptr, i64 3
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%d = load float, float* %idx5, align 8
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%vec6 = insertelement <4 x float> %vec4, float %d, i32 3
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ret <4 x float> %vec6
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}
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; PR21710 ( http://llvm.org/bugs/show_bug.cgi?id=21710 )
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; Make sure that 32-byte vectors are handled efficiently.
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; If the target has slow 32-byte accesses, we should still generate
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; 16-byte loads.
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define <8 x float> @merge_8_floats(float* %ptr) {
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; FAST32-LABEL: merge_8_floats:
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; FAST32: # %bb.0:
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; FAST32-NEXT: vmovups (%rdi), %ymm0
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; FAST32-NEXT: retq
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;
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; SLOW32-LABEL: merge_8_floats:
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; SLOW32: # %bb.0:
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; SLOW32-NEXT: vmovups (%rdi), %xmm0
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; SLOW32-NEXT: vinsertf128 $1, 16(%rdi), %ymm0, %ymm0
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; SLOW32-NEXT: retq
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%a = load float, float* %ptr, align 4
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%vec = insertelement <8 x float> undef, float %a, i32 0
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%idx1 = getelementptr inbounds float, float* %ptr, i64 1
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%b = load float, float* %idx1, align 4
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%vec2 = insertelement <8 x float> %vec, float %b, i32 1
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%idx3 = getelementptr inbounds float, float* %ptr, i64 2
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%c = load float, float* %idx3, align 4
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%vec4 = insertelement <8 x float> %vec2, float %c, i32 2
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%idx5 = getelementptr inbounds float, float* %ptr, i64 3
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%d = load float, float* %idx5, align 4
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%vec6 = insertelement <8 x float> %vec4, float %d, i32 3
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%idx7 = getelementptr inbounds float, float* %ptr, i64 4
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%e = load float, float* %idx7, align 4
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%vec8 = insertelement <8 x float> %vec6, float %e, i32 4
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%idx9 = getelementptr inbounds float, float* %ptr, i64 5
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%f = load float, float* %idx9, align 4
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%vec10 = insertelement <8 x float> %vec8, float %f, i32 5
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%idx11 = getelementptr inbounds float, float* %ptr, i64 6
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%g = load float, float* %idx11, align 4
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%vec12 = insertelement <8 x float> %vec10, float %g, i32 6
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%idx13 = getelementptr inbounds float, float* %ptr, i64 7
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%h = load float, float* %idx13, align 4
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%vec14 = insertelement <8 x float> %vec12, float %h, i32 7
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ret <8 x float> %vec14
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}
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define <4 x double> @merge_4_doubles(double* %ptr) {
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; FAST32-LABEL: merge_4_doubles:
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; FAST32: # %bb.0:
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; FAST32-NEXT: vmovups (%rdi), %ymm0
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; FAST32-NEXT: retq
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;
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; SLOW32-LABEL: merge_4_doubles:
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; SLOW32: # %bb.0:
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; SLOW32-NEXT: vmovups (%rdi), %xmm0
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; SLOW32-NEXT: vinsertf128 $1, 16(%rdi), %ymm0, %ymm0
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; SLOW32-NEXT: retq
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%a = load double, double* %ptr, align 8
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%vec = insertelement <4 x double> undef, double %a, i32 0
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%idx1 = getelementptr inbounds double, double* %ptr, i64 1
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%b = load double, double* %idx1, align 8
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%vec2 = insertelement <4 x double> %vec, double %b, i32 1
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%idx3 = getelementptr inbounds double, double* %ptr, i64 2
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%c = load double, double* %idx3, align 8
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%vec4 = insertelement <4 x double> %vec2, double %c, i32 2
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%idx5 = getelementptr inbounds double, double* %ptr, i64 3
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%d = load double, double* %idx5, align 8
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%vec6 = insertelement <4 x double> %vec4, double %d, i32 3
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ret <4 x double> %vec6
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}
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; PR21771 ( http://llvm.org/bugs/show_bug.cgi?id=21771 )
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; Recognize and combine consecutive loads even when the
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; first of the combined loads is offset from the base address.
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define <4 x double> @merge_4_doubles_offset(double* %ptr) {
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; FAST32-LABEL: merge_4_doubles_offset:
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; FAST32: # %bb.0:
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; FAST32-NEXT: vmovups 32(%rdi), %ymm0
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; FAST32-NEXT: retq
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;
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; SLOW32-LABEL: merge_4_doubles_offset:
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; SLOW32: # %bb.0:
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; SLOW32-NEXT: vmovups 32(%rdi), %xmm0
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; SLOW32-NEXT: vinsertf128 $1, 48(%rdi), %ymm0, %ymm0
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; SLOW32-NEXT: retq
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%arrayidx4 = getelementptr inbounds double, double* %ptr, i64 4
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%arrayidx5 = getelementptr inbounds double, double* %ptr, i64 5
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%arrayidx6 = getelementptr inbounds double, double* %ptr, i64 6
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%arrayidx7 = getelementptr inbounds double, double* %ptr, i64 7
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%e = load double, double* %arrayidx4, align 8
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%f = load double, double* %arrayidx5, align 8
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%g = load double, double* %arrayidx6, align 8
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%h = load double, double* %arrayidx7, align 8
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%vecinit4 = insertelement <4 x double> undef, double %e, i32 0
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%vecinit5 = insertelement <4 x double> %vecinit4, double %f, i32 1
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%vecinit6 = insertelement <4 x double> %vecinit5, double %g, i32 2
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%vecinit7 = insertelement <4 x double> %vecinit6, double %h, i32 3
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ret <4 x double> %vecinit7
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}
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