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| author | Kaz Kojima <kkojima@gcc.gnu.org> | 2011-08-05 16:12:16 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2011-08-05 09:12:16 -0700 |
| commit | 7ac1744204d8d70400d72b23548144735a52debd (patch) | |
| tree | 60bd0ca4e7f764847869d9dfdd98a38190735d4b /gcc | |
| parent | 42443bdbc84a6b144c84c96b6cc33b25558a9307 (diff) | |
| download | gcc-7ac1744204d8d70400d72b23548144735a52debd.zip gcc-7ac1744204d8d70400d72b23548144735a52debd.tar.gz gcc-7ac1744204d8d70400d72b23548144735a52debd.tar.bz2 | |
re PR rtl-optimization/49982 (ICE in fixup_args_size_notes, at expr.c:3625)
PR rtl-opt/49982
* expr.c (fixup_args_size_notes): Look through no-op moves.
Co-Authored-By: Richard Henderson <rth@redhat.com>
From-SVN: r177464
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expr.c | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1b5cd35..74f634a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-08-05 Kaz Kojima <kkojima@gcc.gnu.org> + Richard Henderson <rth@redhat.com> + + PR rtl-opt/49982 + * expr.c (fixup_args_size_notes): Look through no-op moves. + 2011-08-05 Uros Bizjak <ubizjak@gmail.com> * config/i386/i386.md (*push<mode>2): Use "o" constraint instead @@ -3631,6 +3631,10 @@ fixup_args_size_notes (rtx prev, rtx last, int end_args_size) && XEXP (SET_SRC (set), 0) == stack_pointer_rtx && CONST_INT_P (XEXP (SET_SRC (set), 1))) this_delta = INTVAL (XEXP (SET_SRC (set), 1)); + /* ??? Reload can generate no-op moves, which will be cleaned + up later. Recognize it and continue searching. */ + else if (rtx_equal_p (dest, SET_SRC (set))) + this_delta = 0; else saw_unknown = true; } |