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Add another missing pattern. llvm-gcc likes f64 but clang likes i64 so it was generating poor code for some SSE builtins. 

llvm-svn: 145448
This commit is contained in:
Evan Cheng 2011-11-29 22:48:34 +00:00
parent 507840dbff
commit 648e48d02e
2 changed files with 26 additions and 1 deletions
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6
llvm/lib/Target/X86/X86InstrSSE.td
View File

@ -1150,6 +1150,9 @@ let Predicates = [HasAVX] in {
def : Pat<(X86Movlhps VR128:$src1,
(bc_v4f32 (v2f64 (scalar_to_vector (loadf64 addr:$src2))))),
(VMOVHPSrm VR128:$src1, addr:$src2)>;
def : Pat<(X86Movlhps VR128:$src1,
(bc_v4f32 (v2i64 (scalar_to_vector (loadi64 addr:$src2))))),
(VMOVHPSrm VR128:$src1, addr:$src2)>;
def : Pat<(X86Movlhps VR128:$src1,
(bc_v4i32 (v2i64 (X86vzload addr:$src2)))),
(VMOVHPSrm VR128:$src1, addr:$src2)>;
@ -1183,6 +1186,9 @@ let Predicates = [HasSSE1] in {
def : Pat<(X86Movlhps VR128:$src1,
(bc_v4f32 (v2f64 (scalar_to_vector (loadf64 addr:$src2))))),
(MOVHPSrm VR128:$src1, addr:$src2)>;
def : Pat<(X86Movlhps VR128:$src1,
(bc_v4f32 (v2i64 (scalar_to_vector (loadi64 addr:$src2))))),
(MOVHPSrm VR128:$src1, addr:$src2)>;
def : Pat<(X86Movlhps VR128:$src1,
(bc_v4f32 (v2i64 (X86vzload addr:$src2)))),
(MOVHPSrm VR128:$src1, addr:$src2)>;

21
llvm/test/CodeGen/X86/vec_shuffle-38.ll
View File

@ -46,7 +46,7 @@ entry:
; rdar://10119696
; CHECK: f
define <4 x float> @f(<4 x float> %x, double* nocapture %y) nounwind uwtable readonly ssp {
define <4 x float> @f(<4 x float> %x, double* nocapture %y) nounwind readonly ssp {
entry:
; CHECK: movlps (%{{rdi|rdx}}), %xmm0
%u110.i = load double* %y, align 1
@ -56,3 +56,22 @@ entry:
ret <4 x float> %shuffle.i
}
define <4 x float> @loadhpi2(%struct.Float2* nocapture %vHiCoefPtr_0, %struct.Float2* nocapture %vLoCoefPtr_0, i32 %s) nounwind readonly ssp {
entry:
; CHECK: loadhpi2
; CHECK: movhps (
; CHECK-NOT: movlhps
%0 = bitcast %struct.Float2* %vHiCoefPtr_0 to <1 x i64>*
%idx.ext = sext i32 %s to i64
%add.ptr = getelementptr inbounds <1 x i64>* %0, i64 %idx.ext
%add.ptr.val = load <1 x i64>* %add.ptr, align 1
%1 = bitcast <1 x i64> %add.ptr.val to <2 x float>
%shuffle.i = shufflevector <2 x float> %1, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%2 = bitcast %struct.Float2* %vLoCoefPtr_0 to <1 x i64>*
%add.ptr2 = getelementptr inbounds <1 x i64>* %2, i64 %idx.ext
%add.ptr2.val = load <1 x i64>* %add.ptr2, align 1
%3 = bitcast <1 x i64> %add.ptr2.val to <2 x float>
%shuffle.i4 = shufflevector <2 x float> %3, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%shuffle1.i5 = shufflevector <4 x float> %shuffle.i, <4 x float> %shuffle.i4, <4 x i32> <i32 0, i32 1, i32 4, i32 5>
ret <4 x float> %shuffle1.i5
}