diff options
| author | Jan Hubicka <jh@suse.cz> | 2002-03-27 23:16:20 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2002-03-27 22:16:20 +0000 |
| commit | 218aa620c4a1f7c2fadd6605d9ed5caee604079b (patch) | |
| tree | 66bd365666d5402108b000c5165337152aac93ff /gcc/optabs.c | |
| parent | e27a4eaf4f12cf7fcb1c2bed8a0f9ac539a309e6 (diff) | |
| download | gcc-218aa620c4a1f7c2fadd6605d9ed5caee604079b.zip gcc-218aa620c4a1f7c2fadd6605d9ed5caee604079b.tar.gz gcc-218aa620c4a1f7c2fadd6605d9ed5caee604079b.tar.bz2 | |
optabs.c (emit_no_conflict_block, [...]): Avoid nesting of libcall regions.
* optabs.c (emit_no_conflict_block, emit_libcall_block): Avoid nesting
of libcall regions.
From-SVN: r51477
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index 2abf673..86c20b0 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -2739,11 +2739,18 @@ emit_no_conflict_block (insns, target, op0, op1, equiv) these from the list. */ for (insn = insns; insn; insn = next) { - rtx set = 0; + rtx set = 0, note; int i; next = NEXT_INSN (insn); + /* Some ports (cris) create an libcall regions at their own. We must + avoid any potential nesting of LIBCALLs. */ + if ((note = find_reg_note (insn, REG_LIBCALL, NULL)) != NULL) + remove_note (insn, note); + if ((note = find_reg_note (insn, REG_RETVAL, NULL)) != NULL) + remove_note (insn, note); + if (GET_CODE (PATTERN (insn)) == SET || GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER) set = PATTERN (insn); @@ -2906,6 +2913,14 @@ emit_libcall_block (insns, target, result, equiv) for (insn = insns; insn; insn = next) { rtx set = single_set (insn); + rtx note; + + /* Some ports (cris) create an libcall regions at their own. We must + avoid any potential nesting of LIBCALLs. */ + if ((note = find_reg_note (insn, REG_LIBCALL, NULL)) != NULL) + remove_note (insn, note); + if ((note = find_reg_note (insn, REG_RETVAL, NULL)) != NULL) + remove_note (insn, note); next = NEXT_INSN (insn); |