From 218aa620c4a1f7c2fadd6605d9ed5caee604079b Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Wed, 27 Mar 2002 23:16:20 +0100 Subject: [PATCH] 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 --- gcc/ChangeLog | 5 +++++ gcc/optabs.c | 17 ++++++++++++++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8cb61376b02..6ad87b7a00c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Wed Mar 27 23:11:35 CET 2002 Jan Hubicka + + * optabs.c (emit_no_conflict_block, emit_libcall_block): Avoid nesting + of libcall regions. + Wed Mar 27 22:54:14 CET 2002 Zdenek Dvorak * cfgrtl.c (merge_blocks_nomove): Use set_block_for_insn instead of diff --git a/gcc/optabs.c b/gcc/optabs.c index 2abf67359c4..86c20b08d81 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); -- 2.30.2