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[PATCH 1/3] Define target hook TARGET_UNWIND_EMIT_BEFORE_INSN.
- From: rth at redhat dot com
- To: gcc-patches at gcc dot gnu dot org
- To: gcc-patches at gcc dot gnu dot org
- Cc: Richard Henderson <rth at twiddle dot net>, ktietz70 at googlemail dot com
- Date: Tue, 10 Aug 2010 14:07:22 -0700
- Subject: [PATCH 1/3] Define target hook TARGET_UNWIND_EMIT_BEFORE_INSN.
- References: <1281474444-8772-1-git-send-email-rth@redhat.com>
From: Richard Henderson <rth@twiddle.net>
---
gcc/doc/tm.texi | 4 ++++
gcc/doc/tm.texi.in | 2 ++
gcc/final.c | 7 ++++++-
gcc/target.def | 7 +++++++
4 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index d59c55f..36bf0ab 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -8718,6 +8718,10 @@ This target hook emits assembly directives required to unwind the
given instruction. This is only used when TARGET_UNWIND_INFO is set.
@end deftypefn
+@deftypevr {Target Hook} bool TARGET_ASM_UNWIND_EMIT_BEFORE_INSN
+True if the @code{TARGET_ASM_UNWIND_EMIT} hook should be called before the assembly for @var{insn} has been emitted, false if the hook should be called afterward.
+@end deftypevr
+
@node Exception Region Output
@subsection Assembler Commands for Exception Regions
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index 1b00ebc..2ef95c2 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -8708,6 +8708,8 @@ This target hook emits assembly directives required to unwind the
given instruction. This is only used when TARGET_UNWIND_INFO is set.
@end deftypefn
+@hook TARGET_ASM_UNWIND_EMIT_BEFORE_INSN
+
@node Exception Region Output
@subsection Assembler Commands for Exception Regions
diff --git a/gcc/final.c b/gcc/final.c
index f1cff34..46b4786 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -2655,7 +2655,8 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
/* ??? This will put the directives in the wrong place if
get_insn_template outputs assembly directly. However calling it
before get_insn_template breaks if the insns is split. */
- if (targetm.asm_out.unwind_emit)
+ if (targetm.asm_out.unwind_emit_before_insn
+ && targetm.asm_out.unwind_emit)
targetm.asm_out.unwind_emit (asm_out_file, insn);
if (CALL_P (insn))
@@ -2713,6 +2714,10 @@ final_scan_insn (rtx insn, FILE *file, int optimize ATTRIBUTE_UNUSED,
dwarf2out_frame_debug (insn, true);
#endif
+ if (!targetm.asm_out.unwind_emit_before_insn
+ && targetm.asm_out.unwind_emit)
+ targetm.asm_out.unwind_emit (asm_out_file, insn);
+
current_output_insn = debug_insn = 0;
}
}
diff --git a/gcc/target.def b/gcc/target.def
index 10013e6..9fa23e2 100644
--- a/gcc/target.def
+++ b/gcc/target.def
@@ -152,6 +152,13 @@ DEFHOOK
void, (FILE *stream, rtx insn),
NULL)
+DEFHOOKPOD
+(unwind_emit_before_insn,
+ "True if the @code{TARGET_ASM_UNWIND_EMIT} hook should be called before\
+ the assembly for @var{insn} has been emitted, false if the hook should\
+ be called afterward.",
+ bool, true)
+
/* Output an internal label. */
DEFHOOK
(internal_label,
--
1.7.2.1