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| author | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-11-27 21:45:26 +0000 |
|---|---|---|
| committer | amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-11-27 21:45:26 +0000 |
| commit | 9ed780b5233d88c7970f9c8d248cbcf44f2909d5 (patch) | |
| tree | 2d746e7a8a20d3c0e9cbb9a75fe5860b8165a125 /gcc/cse.c | |
| parent | 4da37e2f5ec16c34e69a9b12ab93313094f841bf (diff) | |
| download | gcc-9ed780b5233d88c7970f9c8d248cbcf44f2909d5.tar.gz | |
* cse.c (cse_set_around_loop): When changing a constant load
to a register -register copy, add a REG_EQUAL note.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@74007 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/cse.c b/gcc/cse.c index 7612a5a7ed5..faaf187b32c 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -6676,6 +6676,10 @@ cse_set_around_loop (rtx x, rtx insn, rtx loop_start) } else { + if (CONSTANT_P (SET_SRC (set)) + && ! find_reg_equal_equiv_note (insn)) + set_unique_reg_note (insn, REG_EQUAL, + SET_SRC (set)); if (control_flow_insn_p (p)) /* p can cause a control flow transfer so it is the last insn of a basic block. We can't |