re PR target/32280 (_mm_srli_si128, heinous code for some shifts)

	PR target/32280
	* config/i386/sse.md ("sse2_ashlti", "sse2_lshrti3"): Move ...
	* config/i386/i386.md ("sse2_ashlti", "sse2_lshrti3"): ... to here.

testsuite/ChangeLog:
	
	PR target/32280
	* gcc.target/i386/pr32280.c: New test.

From-SVN: r125615

gcc/ChangeLog

 2007-06-11  Uros Bizjak  <ubizjak@gmail.com>
 
+	PR target/32280
+	* config/i386/sse.md ("sse2_ashlti", "sse2_lshrti3"): Move ...
+	* config/i386/i386.md ("sse2_ashlti", "sse2_lshrti3"): ... to here.
+
+2007-06-11  Uros Bizjak  <ubizjak@gmail.com>
+
 	PR middle-end/32279
 	* fold-const (fold_binary) [RDIV_EXPR]: Optimize a/sqrt(b/c)
 	into a*sqrt(c/b) if flag_unsafe_math_optimizations is set.

gcc/config/i386/i386.md

@@ -10317,6 +10317,22 @@
   "#"
   [(set_attr "type" "multi")])
 
+;; This pattern must be defined before *ashlti3_2 to prevent
+;; combine pass from converting sse2_ashlti3 to *ashlti3_2.
+
+(define_insn "sse2_ashlti3"
+  [(set (match_operand:TI 0 "register_operand" "=x")
+	(ashift:TI (match_operand:TI 1 "register_operand" "0")
+		   (match_operand:SI 2 "const_0_to_255_mul_8_operand" "n")))]
+  "TARGET_SSE2"
+{
+  operands[2] = GEN_INT (INTVAL (operands[2]) / 8);
+  return "pslldq\t{%2, %0|%0, %2}";
+}
+  [(set_attr "type" "sseishft")
+   (set_attr "prefix_data16" "1")
+   (set_attr "mode" "TI")])
+
 (define_insn "*ashlti3_2"
   [(set (match_operand:TI 0 "register_operand" "=r")
 	(ashift:TI (match_operand:TI 1 "register_operand" "0")
@@ -11990,6 +12006,22 @@
   "#"
   [(set_attr "type" "multi")])
 
+;; This pattern must be defined before *lshrti3_2 to prevent
+;; combine pass from converting sse2_lshrti3 to *lshrti3_2.
+
+(define_insn "sse2_lshrti3"
+  [(set (match_operand:TI 0 "register_operand" "=x")
+ 	(lshiftrt:TI (match_operand:TI 1 "register_operand" "0")
+		     (match_operand:SI 2 "const_0_to_255_mul_8_operand" "n")))]
+  "TARGET_SSE2"
+{
+  operands[2] = GEN_INT (INTVAL (operands[2]) / 8);
+  return "psrldq\t{%2, %0|%0, %2}";
+}
+  [(set_attr "type" "sseishft")
+   (set_attr "prefix_data16" "1")
+   (set_attr "mode" "TI")])
+
 (define_insn "*lshrti3_2"
   [(set (match_operand:TI 0 "register_operand" "=r")
 	(lshiftrt:TI (match_operand:TI 1 "register_operand" "0")

gcc/config/i386/sse.md

@@ -3345,19 +3345,6 @@
    (set_attr "prefix_data16" "1")
    (set_attr "mode" "TI")])
 
-(define_insn "sse2_ashlti3"
-  [(set (match_operand:TI 0 "register_operand" "=x")
-	(ashift:TI (match_operand:TI 1 "register_operand" "0")
-		   (match_operand:SI 2 "const_0_to_255_mul_8_operand" "n")))]
-  "TARGET_SSE2"
-{
-  operands[2] = GEN_INT (INTVAL (operands[2]) / 8);
-  return "pslldq\t{%2, %0|%0, %2}";
-}
-  [(set_attr "type" "sseishft")
-   (set_attr "prefix_data16" "1")
-   (set_attr "mode" "TI")])
-
 (define_expand "vec_shl_<mode>"
   [(set (match_operand:SSEMODEI 0 "register_operand" "")
         (ashift:TI (match_operand:SSEMODEI 1 "register_operand" "")
@@ -3370,19 +3357,6 @@
   operands[1] = gen_lowpart (TImode, operands[1]);
 })
 
-(define_insn "sse2_lshrti3"
-  [(set (match_operand:TI 0 "register_operand" "=x")
- 	(lshiftrt:TI (match_operand:TI 1 "register_operand" "0")
-		     (match_operand:SI 2 "const_0_to_255_mul_8_operand" "n")))]
-  "TARGET_SSE2"
-{
-  operands[2] = GEN_INT (INTVAL (operands[2]) / 8);
-  return "psrldq\t{%2, %0|%0, %2}";
-}
-  [(set_attr "type" "sseishft")
-   (set_attr "prefix_data16" "1")
-   (set_attr "mode" "TI")])
-
 (define_expand "vec_shr_<mode>"
   [(set (match_operand:SSEMODEI 0 "register_operand" "")
         (lshiftrt:TI (match_operand:SSEMODEI 1 "register_operand" "")

gcc/testsuite/ChangeLog

 2007-06-11  Uros Bizjak  <ubizjak@gmail.com>
 
+	PR target/32280
+	* gcc.target/i386/pr32280.c: New test.
+
+2007-06-11  Uros Bizjak  <ubizjak@gmail.com>
+
 	PR middle-end/32279
 	* gcc.dg/builtins-11.c: Also check folding of a/sqrt(b/c).
 

gcc/testsuite/gcc.target/i386/pr32280.c

+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-O2 -msse2" } */
+
+typedef long long __m128i __attribute__ ((__vector_size__ (16)));
+
+__m128i foo1(__m128i __a)
+{
+ return (__m128i)__builtin_ia32_pslldqi128 (__a, 8);
+}
+
+__m128i foo2(__m128i __a)
+{
+ return (__m128i)__builtin_ia32_psrldqi128 (__a, 8);
+}
+
+/* { dg-final { scan-assembler "psrldq" } } */
+/* { dg-final { scan-assembler "pslldq" } } */