[PATCH 16/43] i386: Emulate MMX mmx_pextrw with SSE

H.J. Lu hjl.tools@gmail.com
Sat Feb 9 13:25:00 GMT 2019


Emulate MMX mmx_pextrw with SSE.  Only SSE register source operand is
allowed.

	PR target/89021
	* config/i386/mmx.md (mmx_pextrw): Add SSE emulation.
---
 gcc/config/i386/mmx.md | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
index 8a5c5fb93b7..fced8fd4a10 100644
--- a/gcc/config/i386/mmx.md
+++ b/gcc/config/i386/mmx.md
@@ -1349,16 +1349,17 @@
    (set_attr "mode" "DI")])
 
 (define_insn "mmx_pextrw"
-  [(set (match_operand:SI 0 "register_operand" "=r")
+  [(set (match_operand:SI 0 "register_operand" "=r,r")
         (zero_extend:SI
 	  (vec_select:HI
-	    (match_operand:V4HI 1 "register_operand" "y")
-	    (parallel [(match_operand:SI 2 "const_0_to_3_operand" "n")]))))]
+	    (match_operand:V4HI 1 "register_operand" "y,Yy")
+	    (parallel [(match_operand:SI 2 "const_0_to_3_operand" "n,n")]))))]
   "TARGET_SSE || TARGET_3DNOW_A"
-  "pextrw\t{%2, %1, %0|%0, %1, %2}"
-  [(set_attr "type" "mmxcvt")
+  "%vpextrw\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "mmx_isa" "native,x64")
+   (set_attr "type" "mmxcvt,sselog1")
    (set_attr "length_immediate" "1")
-   (set_attr "mode" "DI")])
+   (set_attr "mode" "DI,TI")])
 
 (define_expand "mmx_pshufw"
   [(match_operand:V4HI 0 "register_operand")
-- 
2.20.1



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