+2010-01-19 Jakub Jelinek <jakub@redhat.com>
+
+ PR debug/42728
+ * fwprop.c (all_uses_available_at): Return false if def_set dest
+ is a REG that is used in def_insn.
+
2010-01-19 Joern Rennecke <amylaar@spamcop.net>
* doc/tm.texi (TARGET_FIXED_CONDITION_CODE_REGS): Add argument names.
}
else
{
+ rtx def_reg = REG_P (SET_DEST (def_set)) ? SET_DEST (def_set) : NULL_RTX;
+
/* Look at all the uses of DEF_INSN, and see if they are not
killed between DEF_INSN and TARGET_INSN. */
for (use_rec = DF_INSN_INFO_USES (insn_info); *use_rec; use_rec++)
{
df_ref use = *use_rec;
+ if (def_reg && rtx_equal_p (DF_REF_REG (use), def_reg))
+ return false;
if (use_killed_between (use, def_insn, target_insn))
return false;
}
for (use_rec = DF_INSN_INFO_EQ_USES (insn_info); *use_rec; use_rec++)
{
df_ref use = *use_rec;
+ if (def_reg && rtx_equal_p (DF_REF_REG (use), def_reg))
+ return false;
if (use_killed_between (use, def_insn, target_insn))
return false;
}
+2010-01-19 Jakub Jelinek <jakub@redhat.com>
+
+ PR debug/42728
+ * gcc.dg/pr42728.c: New test.
+
2010-01-19 Anthony Green <green@moxielogic.com>
* gcc.dg/tree-ssa/20040204-1.c: Expect this test to pass.