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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-05-11 22:07:58 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-05-11 22:07:58 +0000 |
| commit | 4e4d101caf6b7b6c406bd0b1f4a05ad1146b40c6 (patch) | |
| tree | 6f37a32a470890e65d2ba1e271ab092228560704 /gcc | |
| parent | beac175dbd509146449a90fa6fc0edf2f8183ec3 (diff) | |
| download | ppe42-gcc-4e4d101caf6b7b6c406bd0b1f4a05ad1146b40c6.tar.gz ppe42-gcc-4e4d101caf6b7b6c406bd0b1f4a05ad1146b40c6.zip | |
* gcse.c (insert_insn_end_bb): Do not search for assignments to
non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@41976 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/gcse.c | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d5acce97fc1..5c736423168 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,8 @@ Fri May 11 15:50:13 2001 Jeffrey A Law (law@cygnus.com) + * gcse.c (insert_insn_end_bb): Do not search for assignments to + non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE. + * toplev.c (compile_file): Move comment for opening output file to just before the code that opens the output file. diff --git a/gcc/gcse.c b/gcc/gcse.c index 07bdbf5e21d..fa8ec089699 100644 --- a/gcc/gcse.c +++ b/gcc/gcse.c @@ -4787,6 +4787,11 @@ insert_insn_end_bb (expr, bb, pre) if (REGNO (XEXP (XEXP (p, 0), 0)) >= FIRST_PSEUDO_REGISTER) abort (); + /* We only care about registers which can hold function + arguments. */ + if (! FUNCTION_ARG_REGNO_P (REGNO (XEXP (XEXP (p, 0), 0)))) + continue; + SET_HARD_REG_BIT (parm_regs, REGNO (XEXP (XEXP (p, 0), 0))); nparm_regs++; } |
