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authormrs <mrs@138bc75d-0d04-0410-961f-82ee72b054a4>2007-02-03 04:52:51 +0000
committermrs <mrs@138bc75d-0d04-0410-961f-82ee72b054a4>2007-02-03 04:52:51 +0000
commita15a1b518debb23e76370968264408fd2277c4d1 (patch)
tree54c17e9fc5a50d361ede340d400a56a854c64726 /gcc/config
parent771b60860b0d3f91c0d93eb61efc95bc8e8f2227 (diff)
downloadgcc-a15a1b518debb23e76370968264408fd2277c4d1.tar.gz
* config/darwin9.h (DARWIN_LINKER_GENERATES_ISLANDS): Add.
* config/rs6000/rs6000.c (DARWIN_GENERATE_ISLANDS): Add. (output_call): Use DARWIN_GENERATE_ISLANDS to decide when to generate a branch island. Radar 4967371 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@121534 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config')
-rw-r--r--gcc/config/darwin9.h3
-rw-r--r--gcc/config/rs6000/rs6000.c12
2 files changed, 13 insertions, 2 deletions
diff --git a/gcc/config/darwin9.h b/gcc/config/darwin9.h
index 3f62677141a..7431cfb1ed7 100644
--- a/gcc/config/darwin9.h
+++ b/gcc/config/darwin9.h
@@ -17,3 +17,6 @@
%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
%{.c|.cc|.C|.cpp|.c++|.CPP|.m|.mm: \
%{g*:%{!gstabs*:%{!g0: dsymutil %{o*:%*}%{!o:a.out}}}}}}}}}}}}"
+
+/* The linker can generate branch islands. */
+#define DARWIN_LINKER_GENERATES_ISLANDS 1
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 8624c90a889..18c00e0fafa 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -797,7 +797,6 @@ static int rs6000_arg_partial_bytes (CUMULATIVE_ARGS *, enum machine_mode,
static const char *invalid_arg_for_unprototyped_fn (tree, tree, tree);
#if TARGET_MACHO
static void macho_branch_islands (void);
-static void add_compiler_branch_island (tree, tree, int);
static int no_previous_def (tree function_name);
static tree get_prev_label (tree function_name);
static void rs6000_darwin_file_start (void);
@@ -19076,6 +19075,14 @@ get_prev_label (tree function_name)
return 0;
}
+#ifndef DARWIN_LINKER_GENERATES_ISLANDS
+#define DARWIN_LINKER_GENERATES_ISLANDS 0
+#endif
+
+/* KEXTs still need branch islands. */
+#define DARWIN_GENERATE_ISLANDS (!DARWIN_LINKER_GENERATES_ISLANDS \
+ || flag_mkernel || flag_apple_kext)
+
/* INSN is either a function call or a millicode call. It may have an
unconditional jump in its delay slot.
@@ -19086,7 +19093,8 @@ output_call (rtx insn, rtx *operands, int dest_operand_number,
int cookie_operand_number)
{
static char buf[256];
- if (GET_CODE (operands[dest_operand_number]) == SYMBOL_REF
+ if (DARWIN_GENERATE_ISLANDS
+ && GET_CODE (operands[dest_operand_number]) == SYMBOL_REF
&& (INTVAL (operands[cookie_operand_number]) & CALL_LONG))
{
tree labelname;