re PR debug/49567 (ICE in mem_loc_descriptor due to typed DWARF stack changes)

	PR debug/49567
	* dwarf2out.c (mem_loc_descriptor) <case ZERO_EXTEND>: Give up
	for non-MODE_INT modes instead of asserting the mode has MODE_INT
	class.

	* gcc.target/i386/pr49567.c: New test.

From-SVN: r175622

gcc/ChangeLog

+2011-06-29  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/49567
+	* dwarf2out.c (mem_loc_descriptor) <case ZERO_EXTEND>: Give up
+	for non-MODE_INT modes instead of asserting the mode has MODE_INT
+	class.
+
 2011-06-29  Georg-Johann Lay  <avr@gjlay.de>
 	
 	PR target/34734

gcc/dwarf2out.c

@@ -14762,7 +14762,8 @@ mem_loc_descriptor (rtx rtl, enum machine_mode mode,
 
     case SIGN_EXTEND:
     case ZERO_EXTEND:
-      gcc_assert (GET_MODE_CLASS (mode) == MODE_INT);
+      if (GET_MODE_CLASS (mode) != MODE_INT)
+	break;
       op0 = mem_loc_descriptor (XEXP (rtl, 0), GET_MODE (XEXP (rtl, 0)),
 				mem_mode, VAR_INIT_STATUS_INITIALIZED);
       if (op0 == 0)

gcc/testsuite/ChangeLog

+2011-06-29  Jakub Jelinek  <jakub@redhat.com>
+
+	PR debug/49567
+	* gcc.target/i386/pr49567.c: New test.
+
 2011-06-28  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* gnat.dg/opt17.ad[sb]: New test.

gcc/testsuite/gcc.target/i386/pr49567.c

+/* PR debug/49567 */
+/* { dg-do compile } */
+/* { dg-options "-g -O2 -msse4" } */
+
+#include <x86intrin.h>
+
+__m128
+foo (__m128i x)
+{
+  __m128i y;
+  y = _mm_cvtepi16_epi32 (x);
+  return _mm_cvtepi32_ps (y);
+}