re PR rtl-optimization/33846 (ICE in trunc_int_for_mode, at explow.c:55)

        PR rtl-optimization/33846
        * combine.c (simplify_shift_const_1) [NOT]: Skip vector modes.

testsuite/ChangeLog:

        PR rtl-optimization/33846
        * gcc.dg/vect/pr33846.c: New testcase.

From-SVN: r129589

gcc/ChangeLog

+2007-10-23  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR rtl-optimization/33846
+	* combine.c (simplify_shift_const_1) [NOT]: Skip vector modes.
+
 2007-10-23  Dorit Nuzman  <dorit@il.ibm.com>
 
 	PR tree-optimization/33860
@@ -32,8 +37,8 @@
 
 	PR tree-optimization/33834
 	PR tree-optimization/33835
-	* tree-vect-analyze.c (vect_analyze_operations): RELEVANT and LIVE stmts
-	need to be checked for success seperately.
+	* tree-vect-analyze.c (vect_analyze_operations): RELEVANT and LIVE
+	stmts need to be checked for success seperately.
 	* tree-vect-transform.c (vectorizable_call, vectorizable_conversion):
 	Remove the check that stmt is not LIVE.
 	(vectorizable_assignment, vectorizable_induction): Likewise.
@@ -899,7 +904,7 @@
 	IX86_BUILTIN_PSRADI128, IX86_BUILTIN_PSRLWI128,
 	IX86_BUILTIN_PSRLDI128, IX86_BUILTIN_PSRLQI128]: Do not require
 	immediate shift value.
-	config/i386/emmintrin.h (_mm_slli_epi16, _mm_slli_epi32,
+	* config/i386/emmintrin.h (_mm_slli_epi16, _mm_slli_epi32,
 	_mm_slli_epi64, _mm_srai_epi16, _mm_srai_epi32, _mm_srli_epi16,
 	_mm_srli_epi32, _mm_srli_epi64): Remove 'const' from count argument.
 	Remove macros for !__OPTIMIZE__ case.

gcc/combine.c

@@ -9343,6 +9343,9 @@ simplify_shift_const_1 (enum rtx_code code, enum machine_mode result_mode,
 	  break;
 
 	case NOT:
+	  if (VECTOR_MODE_P (mode))
+	    break;
+
 	  /* Make this fit the case below.  */
 	  varop = gen_rtx_XOR (mode, XEXP (varop, 0),
 			       GEN_INT (GET_MODE_MASK (mode)));

gcc/testsuite/ChangeLog

-2007-10-23  Martin Michlmayr <tbm@cyrius.com>	
+2007-10-23  Martin Michlmayr <tbm@cyrius.com>
+	    Uros Bizjak  <ubizjak@gmail.com>
+
+	PR rtl-optimization/33846
+	* gcc.dg/vect/pr33846.c: New testcase.
+
+2007-10-23  Martin Michlmayr <tbm@cyrius.com>
 	    Dorit Nuzman  <dorit@il.ibm.com>
 
 	PR tree-optimization/33860
@@ -8,13 +14,13 @@
 2007-10-23  Tehila Meyzels  <tehila@il.ibm.com>
 	    Revital Eres  <eres@il.ibm.com>	 
 
-	*  testsuite/gcc.dg/sms-2.c: New testcase.
+	* testsuite/gcc.dg/sms-2.c: New testcase.
 
 2007-10-22  David S. Miller  <davem@davemloft.net>
 
 	* gcc.dg/globalreg-1.c: New test.
 
-2007-10-22  Martin Michlmayr <tbm@cyrius.com>	
+2007-10-22  Martin Michlmayr <tbm@cyrius.com>
 	    Dorit Nuzman  <dorit@il.ibm.com>
 
 	PR tree-optimization/33834

gcc/testsuite/gcc.dg/vect/pr33846.c

+/* Testcase by Martin Michlmayr <tbm@cyrius.com> */
+/* { dg-do compile } */
+/* { dg-require-effective-target vect_shift } */
+
+int clamp_val (int i)
+{
+  return ~i >> 31;
+}
+
+void _mix_some_samples (long buf, int *mix_buffer, int mix_size)
+{
+  int i;
+  signed int *p = mix_buffer;
+  for (i = mix_size ; i > 0; i--)
+  {
+    *((short *) buf) = clamp_val ((*p) + 0x800000);
+    buf += 2;
+    p++;
+  }
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */