On 01/17/14 14:51, Jeff Law wrote:
Anyway, I clearly need to rethink that test. Given this is something we
haven't seen in the wild, I'm going to disable it over the
weekend/monday so that enable-checking bugs pass and continue to ponder.
And the patch which disables the test.
jeff
commit 78f81be0894b38090cd6280f1e303610434d75c5
Author: Jeff Law <l...@redhat.com>
Date: Thu Jan 16 14:23:15 2014 -0700
* ree.c (combine_set_extension): Temporarily disable test for
changing number of hard registers.
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 37023c8..fabe408 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-01-17 Jeff Law <l...@redhat.com>
+
+ * ree.c (combine_set_extension): Temporarily disable test for
+ changing number of hard registers.
+
2014-01-17 Jan Hubicka <j...@suse.cz>
PR middle-end/58125
diff --git a/gcc/ree.c b/gcc/ree.c
index 19d821c..421eb6c 100644
--- a/gcc/ree.c
+++ b/gcc/ree.c
@@ -297,11 +297,15 @@ combine_set_extension (ext_cand *cand, rtx curr_insn, rtx
*orig_set)
else
new_reg = gen_rtx_REG (cand->mode, REGNO (SET_DEST (*orig_set)));
+#if 0
+ /* Rethinking test. Temporarily disabled. */
/* We're going to be widening the result of DEF_INSN, ensure that doing so
doesn't change the number of hard registers needed for the result. */
if (HARD_REGNO_NREGS (REGNO (new_reg), cand->mode)
- != HARD_REGNO_NREGS (REGNO (orig_src), GET_MODE (SET_DEST (*orig_set))))
+ != HARD_REGNO_NREGS (REGNO (SET_DEST (*orig_set)),
+ GET_MODE (SET_DEST (*orig_set))))
return false;
+#endif
/* Merge constants by directly moving the constant into the register under
some conditions. Recall that RTL constants are sign-extended. */
