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| author | wehle <wehle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-19 16:34:44 +0000 |
|---|---|---|
| committer | wehle <wehle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-08-19 16:34:44 +0000 |
| commit | a8081abb437b8376c9869c342ffcd3c486098a9d (patch) | |
| tree | 2b760b9e70242dd44efe6a433b13fa0b8c4ba519 | |
| parent | f0d643fd31cc71c23d610bb29af9ea5a5b041cc2 (diff) | |
| download | ppe42-gcc-a8081abb437b8376c9869c342ffcd3c486098a9d.tar.gz ppe42-gcc-a8081abb437b8376c9869c342ffcd3c486098a9d.zip | |
* loop.c (scan_loop): Use CONST_CALL_P instead of
checking for REG_LIBCALL / REG_RETVAL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35808 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/loop.c | 11 |
2 files changed, 7 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index eb714b1190f..dc35df43cee 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Sat Aug 19 12:37:08 EDT 2000 John Wehle (john@feith.com) + + * loop.c (scan_loop): Use CONST_CALL_P instead of + checking for REG_LIBCALL / REG_RETVAL. + Sat Aug 19 09:18:47 2000 Jeffrey A Law (law@cygnus.com) * reload1.c (reload_as_needed): Accept dumpfile argument, diff --git a/gcc/loop.c b/gcc/loop.c index ddaf017588a..fe9e0d4ebab 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -599,7 +599,6 @@ scan_loop (loop, flags) rtx loop_entry_jump = 0; /* Number of insns in the loop. */ int insn_count; - int in_libcall = 0; int tem; rtx temp, update_start, update_end; /* The SET from an insn, if it is the only SET in the insn. */ @@ -753,11 +752,6 @@ scan_loop (loop, flags) p != NULL_RTX; p = next_insn_in_loop (loop, p)) { - if (INSN_P (p) && find_reg_note (p, REG_LIBCALL, NULL_RTX)) - in_libcall = 1; - else if (INSN_P (p) && find_reg_note (p, REG_RETVAL, NULL_RTX)) - in_libcall = 0; - if (GET_CODE (p) == INSN && (set = single_set (p)) && GET_CODE (SET_DEST (set)) == REG @@ -1046,9 +1040,8 @@ scan_loop (loop, flags) } /* Past a call insn, we get to insns which might not be executed because the call might exit. This matters for insns that trap. - Call insns inside a REG_LIBCALL/REG_RETVAL block always return, - so they don't count. */ - else if (GET_CODE (p) == CALL_INSN && ! in_libcall) + Constant and pure call insns always return, so they don't count. */ + else if (GET_CODE (p) == CALL_INSN && ! CONST_CALL_P (p)) call_passed = 1; /* Past a label or a jump, we get to insns for which we can't count on whether or how many times they will be |
