diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-07-20 20:07:58 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-07-20 20:07:58 +0000 |
| commit | 675b92cc53934362279f772da8cd4bedddd8f32b (patch) | |
| tree | 6b4648cbef7b5a4a201860a0d8db5f383b7ca3ce /gcc/rtlanal.c | |
| parent | aacbae5445005df9d612655a82d9d676b88d93eb (diff) | |
| download | gcc-675b92cc53934362279f772da8cd4bedddd8f32b.tar.gz | |
* 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
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44210 138bc75d-0d04-0410-961f-82ee72b054a4
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 90562efab6a..2f9696cc1fc 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) |