re PR target/10795 (ICE in extract_insn, at recog.c:2188)

	PR target/10795
	* config/i386/i386.c (ix86_expand_carry_flag_compare): Don't
	swap comparison operands if doing so would generate an
	unrecognizable insn.

From-SVN: r69407

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 38b86a7e0d16060152dfe3f70955ed7d2b3f7900..744f15a9752811680c01285b2ac6abd2022b5f74 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2003-07-15  Kazu Hirata  <kazu@cs.umass.edu>
+
+       PR target/10795
+       * config/i386/i386.c (ix86_expand_carry_flag_compare): Don't
+       swap comparison operands if doing so would generate an
+       unrecognizable insn.
+
 2003-07-15  Eric Botcazou  <ebotcazou@libertysurf.fr>
 
        PR optimization/11320

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index e4a66228665420cd39f1b82086ad8d318b64c148..e314ba53c2f559faf86f84b17b1ec1d1f498815e 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -9383,6 +9383,11 @@ ix86_expand_carry_flag_compare (enum rtx_code code, rtx op0, rtx op1, rtx *pop)
            return false;
          code = (code == GTU ? GEU : LTU);
        }
+      else if (!nonimmediate_operand (op1, mode)
+              || !general_operand (op0, mode))
+       /* Swapping operands in this case would generate an
+          unrecognizable insn.  */
+       return false;
       else
        {
          rtx tmp = op1;