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