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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
; 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 {
%tmp1 = load float* %p
%vecins = insertelement <4 x float> undef, float %tmp1, i32 0
%add.ptr = getelementptr float* %p, i32 1
%tmp5 = load float* %add.ptr
%vecins7 = insertelement <4 x float> %vecins, float %tmp5, i32 1
ret <4 x float> %vecins7
; ALL-LABEL: merge_2_floats
; ALL: vmovq
; ALL-NEXT: retq
}
; 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() {
%1 = load i64** undef, align 8
%2 = getelementptr inbounds i64* %1, i64 0
%3 = load i64* %2
%4 = insertelement <4 x i64> undef, i64 %3, i32 0
%5 = load i64** undef, align 8
%6 = getelementptr inbounds i64* %5, i64 1
%7 = load 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
; ALL-LABEL: merge_2_floats_into_4
; ALL: vmovups
; ALL-NEXT: retq
}
define <4 x float> @merge_4_floats(float* %ptr) {
%a = load float* %ptr, align 8
%vec = insertelement <4 x float> undef, float %a, i32 0
%idx1 = getelementptr inbounds float* %ptr, i64 1
%b = load float* %idx1, align 8
%vec2 = insertelement <4 x float> %vec, float %b, i32 1
%idx3 = getelementptr inbounds float* %ptr, i64 2
%c = load float* %idx3, align 8
%vec4 = insertelement <4 x float> %vec2, float %c, i32 2
%idx5 = getelementptr inbounds float* %ptr, i64 3
%d = load float* %idx5, align 8
%vec6 = insertelement <4 x float> %vec4, float %d, i32 3
ret <4 x float> %vec6
; ALL-LABEL: merge_4_floats
; ALL: vmovups
; ALL-NEXT: retq
}
; 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) {
%a = load float* %ptr, align 4
%vec = insertelement <8 x float> undef, float %a, i32 0
%idx1 = getelementptr inbounds float* %ptr, i64 1
%b = load float* %idx1, align 4
%vec2 = insertelement <8 x float> %vec, float %b, i32 1
%idx3 = getelementptr inbounds float* %ptr, i64 2
%c = load float* %idx3, align 4
%vec4 = insertelement <8 x float> %vec2, float %c, i32 2
%idx5 = getelementptr inbounds float* %ptr, i64 3
%d = load float* %idx5, align 4
%vec6 = insertelement <8 x float> %vec4, float %d, i32 3
%idx7 = getelementptr inbounds float* %ptr, i64 4
%e = load float* %idx7, align 4
%vec8 = insertelement <8 x float> %vec6, float %e, i32 4
%idx9 = getelementptr inbounds float* %ptr, i64 5
%f = load float* %idx9, align 4
%vec10 = insertelement <8 x float> %vec8, float %f, i32 5
%idx11 = getelementptr inbounds float* %ptr, i64 6
%g = load float* %idx11, align 4
%vec12 = insertelement <8 x float> %vec10, float %g, i32 6
%idx13 = getelementptr inbounds float* %ptr, i64 7
%h = load float* %idx13, align 4
%vec14 = insertelement <8 x float> %vec12, float %h, i32 7
ret <8 x float> %vec14
; ALL-LABEL: merge_8_floats
; FAST32: vmovups
; FAST32-NEXT: retq
; SLOW32: vmovups
; SLOW32-NEXT: vinsertf128
; SLOW32-NEXT: retq
}
define <4 x double> @merge_4_doubles(double* %ptr) {
%a = load double* %ptr, align 8
%vec = insertelement <4 x double> undef, double %a, i32 0
%idx1 = getelementptr inbounds double* %ptr, i64 1
%b = load double* %idx1, align 8
%vec2 = insertelement <4 x double> %vec, double %b, i32 1
%idx3 = getelementptr inbounds double* %ptr, i64 2
%c = load double* %idx3, align 8
%vec4 = insertelement <4 x double> %vec2, double %c, i32 2
%idx5 = getelementptr inbounds double* %ptr, i64 3
%d = load double* %idx5, align 8
%vec6 = insertelement <4 x double> %vec4, double %d, i32 3
ret <4 x double> %vec6
; ALL-LABEL: merge_4_doubles
; FAST32: vmovups
; FAST32-NEXT: retq
; SLOW32: vmovups
; SLOW32-NEXT: vinsertf128
; SLOW32-NEXT: retq
}
; 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) {
%arrayidx4 = getelementptr inbounds double* %ptr, i64 4
%arrayidx5 = getelementptr inbounds double* %ptr, i64 5
%arrayidx6 = getelementptr inbounds double* %ptr, i64 6
%arrayidx7 = getelementptr inbounds double* %ptr, i64 7
%e = load double* %arrayidx4, align 8
%f = load double* %arrayidx5, align 8
%g = load double* %arrayidx6, align 8
%h = load 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
; ALL-LABEL: merge_4_doubles_offset
; FAST32: vmovups
; FAST32-NEXT: retq
; SLOW32: vmovups
; SLOW32-NEXT: vinsertf128
; SLOW32-NEXT: retq
}
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