--- a/test/CodeGen/X86/vec_loadsingles.ll	Mon Sep 08 22:07:30 2014 +0900
+++ b/test/CodeGen/X86/vec_loadsingles.ll	Wed Feb 18 14:55:36 2015 +0900
@@ -1,12 +1,145 @@
-; RUN: llc < %s -march=x86 -mattr=+sse2 | grep movq
+; 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
+}
 
-define <4 x float> @a(<4 x float> %a, float* nocapture %p) nounwind readonly {
-entry:
-	%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
+; 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
+}
+