Hi!
ENTRY_VALUE's argument has '0' format letter instead of 'e', so XEXP
must not be used on it (at least not in RTL checking, otherwise it is the
same).
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk.
2011-11-21 Jakub Jelinek <ja...@redhat.com>
PR debug/50827
* var-tracking.c (loc_cmp): For ENTRY_VALUEs use ENTRY_VALUE_EXP
macro instead of XEXP.
* gcc.dg/pr50827.c: New test.
--- gcc/var-tracking.c.jj 2011-11-07 12:40:56.000000000 +0100
+++ gcc/var-tracking.c 2011-11-21 17:01:58.470991801 +0100
@@ -3008,7 +3008,7 @@ loc_cmp (rtx x, rtx y)
if (GET_CODE (y) != ENTRY_VALUE)
return 1;
gcc_assert (GET_MODE (x) == GET_MODE (y));
- return loc_cmp (XEXP (x, 0), XEXP (y, 0));
+ return loc_cmp (ENTRY_VALUE_EXP (x), ENTRY_VALUE_EXP (y));
}
if (GET_CODE (y) == ENTRY_VALUE)
--- gcc/testsuite/gcc.dg/pr50827.c.jj 2011-11-21 17:14:29.570529917 +0100
+++ gcc/testsuite/gcc.dg/pr50827.c 2011-11-21 17:14:20.414584530 +0100
@@ -0,0 +1,17 @@
+/* PR debug/50827 */
+/* { dg-do compile } */
+/* { dg-options "-g -O2 -funroll-loops" } */
+
+void
+foo (int w, int x, int *y, int *z)
+{
+ float f;
+ while (w--)
+ {
+ f = x;
+ if (y)
+ *y = (__INTPTR_TYPE__) y + w;
+ if (z)
+ *z = w;
+ }
+}
Jakub
