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| author | Ulrich Weigand <uweigand@de.ibm.com> | 2009-08-10 15:34:09 +0000 |
|---|---|---|
| committer | Ulrich Weigand <uweigand@gcc.gnu.org> | 2009-08-10 15:34:09 +0000 |
| commit | 0159ec792b364e3b675d606ee66700a4c373bd1f (patch) | |
| tree | 0c5e12fbd47ddfa2d6f82dda681ccb71bdc507a0 /gcc | |
| parent | ee26a76d35d4d9b328f5fd8a423470363125776e (diff) | |
| download | gcc-0159ec792b364e3b675d606ee66700a4c373bd1f.zip gcc-0159ec792b364e3b675d606ee66700a4c373bd1f.tar.gz gcc-0159ec792b364e3b675d606ee66700a4c373bd1f.tar.bz2 | |
re PR middle-end/37053 (ICE in reload_cse_simplify_operands, at postreload.c:395)
PR target/37053
* reload1.c (reload_as_needed): Use cancel_changes to completely
undo a failed replacement attempt.
From-SVN: r150626
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/reload1.c | 26 |
2 files changed, 16 insertions, 16 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 30cd143..67d98a7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2009-08-10 Ulrich Weigand <Ulrich.Weigand@de.ibm.com> + + PR target/37053 + * reload1.c (reload_as_needed): Use cancel_changes to completely + undo a failed replacement attempt. + 2009-08-10 Richard Guenther <rguenther@suse.de> PR middle-end/41006 diff --git a/gcc/reload1.c b/gcc/reload1.c index 6b6da1b..41b436b 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -4304,31 +4304,25 @@ reload_as_needed (int live_known) continue; if (n == 1) { - n = validate_replace_rtx (reload_reg, - gen_rtx_fmt_e (code, - mode, - reload_reg), - p); + rtx replace_reg + = gen_rtx_fmt_e (code, mode, reload_reg); + + validate_replace_rtx_group (reload_reg, + replace_reg, p); + n = verify_changes (0); /* We must also verify that the constraints are met after the replacement. */ extract_insn (p); if (n) n = constrain_operands (1); - else - break; /* If the constraints were not met, then - undo the replacement. */ + undo the replacement, else confirm it. */ if (!n) - { - validate_replace_rtx (gen_rtx_fmt_e (code, - mode, - reload_reg), - reload_reg, p); - break; - } - + cancel_changes (0); + else + confirm_change_group (); } break; } |