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-rw-r--r--lib/Target/X86/X86InstrSSE.td6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrSSE.td b/lib/Target/X86/X86InstrSSE.td
index b44c7a693e..5d6ef36414 100644
--- a/lib/Target/X86/X86InstrSSE.td
+++ b/lib/Target/X86/X86InstrSSE.td
@@ -3027,6 +3027,12 @@ def : Pat<(v4i32 (movlp VR128:$src1, VR128:$src2)),
(MOVLPDrr VR128:$src1, VR128:$src2)>, Requires<[HasSSE2]>;
}
+// vector_shuffle v1, v2 <4, 5, 2, 3> using SHUFPSrri (we prefer movsd, but
+// fall back to this for SSE1)
+def : Pat<(v4f32 (movlp:$src3 VR128:$src1, (v4f32 VR128:$src2))),
+ (SHUFPSrri VR128:$src2, VR128:$src1,
+ (SHUFFLE_get_shuf_imm VR128:$src3))>, Requires<[HasSSE1]>;
+
// Set lowest element and zero upper elements.
let AddedComplexity = 15 in
def : Pat<(v2f64 (movl immAllZerosV_bc, VR128:$src)),