summaryrefslogtreecommitdiff
path: root/meta/packages/gcc/gcc-4.3.0/debian/gcc-i386-emit-cld.dpatch
diff options
context:
space:
mode:
Diffstat (limited to 'meta/packages/gcc/gcc-4.3.0/debian/gcc-i386-emit-cld.dpatch')
-rw-r--r--meta/packages/gcc/gcc-4.3.0/debian/gcc-i386-emit-cld.dpatch179
1 files changed, 0 insertions, 179 deletions
diff --git a/meta/packages/gcc/gcc-4.3.0/debian/gcc-i386-emit-cld.dpatch b/meta/packages/gcc/gcc-4.3.0/debian/gcc-i386-emit-cld.dpatch
deleted file mode 100644
index 1267b00e18..0000000000
--- a/meta/packages/gcc/gcc-4.3.0/debian/gcc-i386-emit-cld.dpatch
+++ /dev/null
@@ -1,179 +0,0 @@
-#! /bin/sh -e
-
-# DP: Emit cld instruction when stringops are used (i386).
-
-dir=
-if [ $# -eq 3 -a "$2" = '-d' ]; then
- pdir="-d $3"
- dir="$3/"
-elif [ $# -ne 1 ]; then
- echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
- exit 1
-fi
-case "$1" in
- -patch)
- patch $pdir -f --no-backup-if-mismatch -p0 < $0
- ;;
- -unpatch)
- patch $pdir -f --no-backup-if-mismatch -R -p0 < $0
- ;;
- *)
- echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
- exit 1
-esac
-exit 0
-
-2008-03-06 Uros Bizjak <ubizjak@gmail.com>
-
- * config/i386/i386.h (TARGET_CLD): New define.
- (struct machine_function): Add needs_cld field.
- (ix86_current_function_needs_cld): New define.
- * config/i386/i386.md (UNSPEC_CLD): New unspec volatile constant.
- ("cld"): New isns pattern.
- ("strmov_singleop"): Set ix86_current_function_needs_cld flag.
- ("rep_mov"): Ditto.
- ("strset_singleop"): Ditto.
- ("rep_stos"): Ditto.
- ("cmpstrnqi_nz_1"): Ditto.
- ("cmpstrnqi_1"): Ditto.
- ("strlenqi_1"): Ditto.
- * config/i386/i386.c (ix86_expand_prologue): Emit cld insn for
- TARGET_CLD when ix86_current_function_needs_cld is set.
-
-Index: gcc/config/i386/i386.h
-===================================================================
---- gcc/config/i386/i386.h (revision 132966)
-+++ gcc/config/i386/i386.h (working copy)
-@@ -388,6 +388,7 @@ extern unsigned int ix86_arch_features[X
-
- extern int x86_prefetch_sse;
-
-+#define TARGET_CLD 1
- #define TARGET_ABM x86_abm
- #define TARGET_CMPXCHG16B x86_cmpxchg16b
- #define TARGET_POPCNT x86_popcnt
-@@ -2446,8 +2447,9 @@ struct machine_function GTY(())
- int save_varrargs_registers;
- int accesses_prev_frame;
- int optimize_mode_switching[MAX_386_ENTITIES];
-- /* Set by ix86_compute_frame_layout and used by prologue/epilogue expander to
-- determine the style used. */
-+ int needs_cld;
-+ /* Set by ix86_compute_frame_layout and used by prologue/epilogue
-+ expander to determine the style used. */
- int use_fast_prologue_epilogue;
- /* Number of saved registers USE_FAST_PROLOGUE_EPILOGUE has been computed
- for. */
-@@ -2467,6 +2469,7 @@ struct machine_function GTY(())
- #define ix86_stack_locals (cfun->machine->stack_locals)
- #define ix86_save_varrargs_registers (cfun->machine->save_varrargs_registers)
- #define ix86_optimize_mode_switching (cfun->machine->optimize_mode_switching)
-+#define ix86_current_function_needs_cld (cfun->machine->needs_cld)
- #define ix86_tls_descriptor_calls_expanded_in_cfun \
- (cfun->machine->tls_descriptor_call_expanded_p)
- /* Since tls_descriptor_call_expanded is not cleared, even if all TLS
-Index: gcc/config/i386/i386.md
-===================================================================
---- gcc/config/i386/i386.md (revision 132966)
-+++ gcc/config/i386/i386.md (working copy)
-@@ -205,6 +205,7 @@
- (UNSPECV_XCHG 12)
- (UNSPECV_LOCK 13)
- (UNSPECV_PROLOGUE_USE 14)
-+ (UNSPECV_CLD 15)
- ])
-
- ;; Constants to represent pcomtrue/pcomfalse variants
-@@ -18519,6 +18520,14 @@
-
- ;; Block operation instructions
-
-+(define_insn "cld"
-+ [(unspec_volatile [(const_int 0)] UNSPECV_CLD)]
-+ ""
-+ "cld"
-+ [(set_attr "length" "1")
-+ (set_attr "length_immediate" "0")
-+ (set_attr "modrm" "0")])
-+
- (define_expand "movmemsi"
- [(use (match_operand:BLK 0 "memory_operand" ""))
- (use (match_operand:BLK 1 "memory_operand" ""))
-@@ -18591,7 +18600,7 @@
- (set (match_operand 2 "register_operand" "")
- (match_operand 5 "" ""))])]
- "TARGET_SINGLE_STRINGOP || optimize_size"
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*strmovdi_rex_1"
- [(set (mem:DI (match_operand:DI 2 "register_operand" "0"))
-@@ -18708,7 +18717,7 @@
- (match_operand 3 "memory_operand" ""))
- (use (match_dup 4))])]
- ""
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*rep_movdi_rex64"
- [(set (match_operand:DI 2 "register_operand" "=c") (const_int 0))
-@@ -18868,7 +18877,7 @@
- (set (match_operand 0 "register_operand" "")
- (match_operand 3 "" ""))])]
- "TARGET_SINGLE_STRINGOP || optimize_size"
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*strsetdi_rex_1"
- [(set (mem:DI (match_operand:DI 1 "register_operand" "0"))
-@@ -18962,7 +18971,7 @@
- (use (match_operand 3 "register_operand" ""))
- (use (match_dup 1))])]
- ""
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*rep_stosdi_rex64"
- [(set (match_operand:DI 1 "register_operand" "=c") (const_int 0))
-@@ -19138,7 +19147,7 @@
- (clobber (match_operand 1 "register_operand" ""))
- (clobber (match_dup 2))])]
- ""
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*cmpstrnqi_nz_1"
- [(set (reg:CC FLAGS_REG)
-@@ -19185,7 +19194,7 @@
- (clobber (match_operand 1 "register_operand" ""))
- (clobber (match_dup 2))])]
- ""
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*cmpstrnqi_1"
- [(set (reg:CC FLAGS_REG)
-@@ -19254,7 +19263,7 @@
- (clobber (match_operand 1 "register_operand" ""))
- (clobber (reg:CC FLAGS_REG))])]
- ""
-- "")
-+ "ix86_current_function_needs_cld = 1;")
-
- (define_insn "*strlenqi_1"
- [(set (match_operand:SI 0 "register_operand" "=&c")
-Index: gcc/config/i386/i386.c
-===================================================================
---- gcc/config/i386/i386.c (revision 132966)
-+++ gcc/config/i386/i386.c (working copy)
-@@ -6498,6 +6498,10 @@ ix86_expand_prologue (void)
- emit_insn (gen_prologue_use (pic_offset_table_rtx));
- emit_insn (gen_blockage ());
- }
-+
-+ /* Emit cld instruction if stringops are used in the function. */
-+ if (TARGET_CLD && ix86_current_function_needs_cld)
-+ emit_insn (gen_cld ());
- }
-
- /* Emit code to restore saved registers using MOV insns. First register
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-02 18:26:37 +0000