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| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1992-11-04 12:23:39 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1992-11-04 12:23:39 +0000 |
| commit | 7145979c097231104e7fca6bb771af818530e93f (patch) | |
| tree | 4f3784c723ba65488e98c6591b5a13fc63dcccc5 /gcc/local-alloc.c | |
| parent | 39b070ebdb7bf1d3f78b4ba3f81ffb543eb4b9ce (diff) | |
| download | ppe42-gcc-7145979c097231104e7fca6bb771af818530e93f.tar.gz ppe42-gcc-7145979c097231104e7fca6bb771af818530e93f.zip | |
(optimize_reg_copy_1): If P is a CALL_INSN, count it as being crossed
by SRC since SRC used to die there.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@2689 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/local-alloc.c')
| -rw-r--r-- | gcc/local-alloc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c index 830f89fd0aa..471bd0400da 100644 --- a/gcc/local-alloc.c +++ b/gcc/local-alloc.c @@ -697,6 +697,12 @@ optimize_reg_copy_1 (insn, dest, src) int n_calls = 0; int d_n_calls = 0; + /* If P is a CALL_INSN, SRC crosses one more call, since it + used to die there. */ + + if (GET_CODE (p) == CALL_INSN) + n_calls++; + /* We can do the optimization. Scan forward from INSN again, replacing regs as we go. Set FAILED if a replacement can't be done. In that case, we can't move the death note for SRC. |
