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| author | Jan Hubicka <jh@suse.cz> | 2001-07-20 22:07:58 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-07-20 20:07:58 +0000 |
| commit | 371b8fc0bc89750fd5aac47eda61cc7db7cf7f53 (patch) | |
| tree | 6b4648cbef7b5a4a201860a0d8db5f383b7ca3ce /gcc/rtlanal.c | |
| parent | 00d0458c03fc77ca4d52412d47b23a09106e3696 (diff) | |
| download | gcc-371b8fc0bc89750fd5aac47eda61cc7db7cf7f53.zip gcc-371b8fc0bc89750fd5aac47eda61cc7db7cf7f53.tar.gz gcc-371b8fc0bc89750fd5aac47eda61cc7db7cf7f53.tar.bz2 | |
rtlanal.c (set_noop_p): Return true for noop jumps.
* rtlanal.c (set_noop_p): Return true for noop jumps.
* expr.c (emit_single_push_insn): Add call to push expander.
* expr.h (optab_index): Add OTI_push
(push_optab): New constant.
* genopinit.c (optabs): Add push_optab.
* optabs.c (init_optab): Init push optab.
* md.texi (push??1): Document
From-SVN: r44210
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 90562ef..2f9696c 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -998,6 +998,9 @@ set_noop_p (set) if (GET_CODE (dst) == MEM && GET_CODE (src) == MEM) return rtx_equal_p (dst, src); + if (dst == pc_rtx && src == pc_rtx) + return 1; + if (GET_CODE (dst) == SIGN_EXTRACT || GET_CODE (dst) == ZERO_EXTRACT) return rtx_equal_p (XEXP (dst, 0), src) |