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dojump.c (do_jump <unordered_bcc>): Do not recursively call self with a TRUTH_ORIF_EXPR...

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* dojump.c (do_jump <unordered_bcc>): Do not recursively call
	self with a TRUTH_ORIF_EXPR; generate the appropriate jump
	sequence inline.  Move drop_through_label code into this
	block, being the only place it is used.  Adjust comments.

From-SVN: r86192
This commit is contained in:
Zack Weinberg 2004-08-18 16:39:40 +00:00
parent d62294f57e
commit 6aaf3ddef9
2 changed files with 51 additions and 50 deletions
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69
gcc/ChangeLog
View File

@ -1,32 +1,39 @@
2004-08-18 Zack Weinberg <zack@codesourcery.com>
* dojump.c (do_jump <unordered_bcc>): Do not recursively call
self with a TRUTH_ORIF_EXPR; generate the appropriate jump
sequence inline. Move drop_through_label code into this
block, being the only place it is used. Adjust comments.
2004-08-18 Fariborz Jahanian <fjahanian@apple.com>
* config/rs6000/altivec.md: Add new patterns for calls to
save_world/rest_world functions.
* config/rs6000/altivec.md: Add new patterns for calls to
save_world/rest_world functions.
* config/rs6000/rs6000-protos.h: (save_world_operation,
restore_world_operation) new declarations.
* config/rs6000/rs6000-protos.h: (save_world_operation,
restore_world_operation) new declarations.
* config/rs6000/rs6000.c: (struct rs6000_stack) new world_save_p
field added.
(rs6000_stack_info): Set world_save_p field.
(save_world_operation): New function.
(restore_world_operation): New function.
(compute_save_world_info): New function.
(rs6000_stack_info): Call compute_save_world_info.
(rs6000_emit_prologue): Check for world_save_p and generate
pattern to call save_world for saving all non-volatile and
special registers.
(rs6000_emit_epilogue): Check for world_save_p and generate
pattern to call rest_world to restore saved registers.
* config/rs6000/rs6000.c: (struct rs6000_stack) new world_save_p
field added.
(rs6000_stack_info): Set world_save_p field.
(save_world_operation): New function.
(restore_world_operation): New function.
(compute_save_world_info): New function.
(rs6000_stack_info): Call compute_save_world_info.
(rs6000_emit_prologue): Check for world_save_p and generate
pattern to call save_world for saving all non-volatile and
special registers.
(rs6000_emit_epilogue): Check for world_save_p and generate
pattern to call rest_world to restore saved registers.
config/rs6000/rs6000.h: macros FIRST_SAVED_ALTIVEC_REGNO,
FIRST_SAVED_FP_REGNO, FIRST_SAVED_GP_REGNO defined.
(rs6000_reg_names): New entries added for save_world_operation and
restore_world_operation.
config/rs6000/rs6000.h: macros FIRST_SAVED_ALTIVEC_REGNO,
FIRST_SAVED_FP_REGNO, FIRST_SAVED_GP_REGNO defined.
(rs6000_reg_names): New entries added for save_world_operation and
restore_world_operation.
2004-08-18 Caroline Tice <ctice@apple.com>
* Makefile.in (STAGEFEEDBACK_FLAGS_TO_PASS) Add
* Makefile.in (STAGEFEEDBACK_FLAGS_TO_PASS) Add
"-freorder-blocks-and-partition" to the flags used in second
stage of profiledbootstrap.
* bb-reorder.c (push_to_next_round_p): Add new variable,
@ -88,7 +95,7 @@
* opts.c (decode_options): If both partitioning and DWARF debugging
are turned on, issue a warning that this doesn't work, and change
partitiong to basic block reordering (without hot/cold partitions).
* passes.c (rest_of_handle_final): Re-set new global variable,
* passes.c (rest_of_handle_final): Re-set new global variable,
user_defined_section_attribute, to false.
(rest_of_compilation): Change options for calling partitioning
function: Don't call if the user defined the section attribute, and
@ -104,7 +111,7 @@
* varasm.c (unlikely_section_label): New global variable.
(unlikely_text_section_name): New global variable.
(unlikely_text_section): Add code to initialize unlikely_text_section_name
if necessary; modify to use unlikely_text_section_name and
if necessary; modify to use unlikely_text_section_name and
unlikely_section_label; also to use named_section properly.
(in_unlikely_text_section): Modify to work correctly with named_section
and to use unlikely_text_section_name.
@ -112,7 +119,7 @@
(function_section): Clean up if-statement.
* config/darwin.c (darwin_asm_named_section): Return to original code,
removing use of SECTION_FORMAT_STRING.
* config/arm/pe.h (switch_to_section): Add case for
* config/arm/pe.h (switch_to_section): Add case for
in_unlikely_executed_text to switch statement.
* config/i386/cygming.h (switch_to_section): Likewise.
* config/i386/darwin.h (NORMAL_TEXT_SECTION_NAME): Remove.
@ -174,7 +181,7 @@
(prescan_loop): Likewise. Don't check function usage for clobbered
unchanging memory.
* rtlanal.c (rtx_unstable_p): Check MEM_READONLY_P,
not RTX_UNCHANGING_P.
not RTX_UNCHANGING_P.
(rtx_varies_p, modified_between_p, modified_in_p): Likewise.
* varasm.c (force_const_mem): Likewise.
* stmt.c (expand_decl): Don't set RTX_UNCHANGING_P.
@ -191,7 +198,7 @@
MEM_READONLY_P instead of RTX_UNCHANGING_P.
(machopic_indirect_call_target): Likewise.
(machopic_legitimize_pic_address): Likewise.
* config/arm/arm.c (legitimize_pic_address, arm_gen_load_multiple,
* config/arm/arm.c (legitimize_pic_address, arm_gen_load_multiple,
arm_gen_store_multiple, arm_gen_movmemqi): Likewise.
* config/arm/arm.md (load_multiple, store_multiple): Likewise.
* config/frv/frv.md (symGOT2reg): Likewise.
@ -303,7 +310,7 @@
xstormy16_below100_operand, xstormy16_below100_or_register,
xstormy16_onebit_set_operand, xstormy16_onebit_clr_operand): New.
(PREDICATE_CODES): Add new predicates.
* config/stormy16/stormy16.c
(xstormy16_asm_output_aligned_common, xstormy16_below100_symbol,
xstormy16_below100_operand, xstormy16_below100_or_register,
@ -347,8 +354,8 @@
* doc/invoke.texi (-fkeep-inline-functions): Update documentation.
2004-08-17 Robert Bowdidge <bowdidge@apple.com>
* config/rs6000/x-darwin: Add -mdynamic-no-pic to gcc build flags.
* config/rs6000/x-darwin: Add -mdynamic-no-pic to gcc build flags.
2004-08-17 Andreas Tobler <a.tobler@schweiz.ch>
@ -388,7 +395,7 @@
* tree-ssa-phiopt.c (empty_block_p): Expose for usage out of this file.
* tree-flow.h (vectorize_loops, empty_block_p): Add declaration.
* tree-optimize.c (pass_vectorize): Schedule the vectorization pass.
* tree-pass.h (tree_opt_pass pass_vectorize): Declare the new
* tree-pass.h (tree_opt_pass pass_vectorize): Declare the new
vectorization pass.
* tree-ssa-loop.c (tree_ssa_loop_init): Call scev_initialize.
(tree_ssa_loop_done): Call scev_finalize.
@ -475,7 +482,7 @@
2004-08-16 Adam Nemet <anemet@lnxw.com>
* Makefile.in (LIBS): Move $(LIBIBERTY) after $(BANSHEELIB).
2004-08-16 Andrew Pinski <apinski@apple.com>
* target-def.h (TARGET_EH_RETURN_FILTER_MODE): Remove

32
gcc/dojump.c
View File

@ -149,19 +149,12 @@ prefer_and_bit_test (enum machine_mode mode, int bitnum)
do_jump always does any pending stack adjust except when it does not
actually perform a jump. An example where there is no jump
is when EXP is `(foo (), 0)' and IF_FALSE_LABEL is null.
This function is responsible for optimizing cases such as
&&, || and comparison operators in EXP. */
is when EXP is `(foo (), 0)' and IF_FALSE_LABEL is null. */
void
do_jump (tree exp, rtx if_false_label, rtx if_true_label)
{
enum tree_code code = TREE_CODE (exp);
/* Some cases need to create a label to jump to
in order to properly fall through.
These cases set DROP_THROUGH_LABEL nonzero. */
rtx drop_through_label = 0;
rtx temp;
int i;
tree type;
@ -448,13 +441,23 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
tree op0 = save_expr (TREE_OPERAND (exp, 0));
tree op1 = save_expr (TREE_OPERAND (exp, 1));
tree cmp0, cmp1;
rtx drop_through_label = 0;
/* If the target doesn't support combined unordered
compares, decompose into two comparisons. */
if (if_true_label == 0)
drop_through_label = if_true_label = gen_label_rtx ();
cmp0 = fold (build2 (tcode1, TREE_TYPE (exp), op0, op1));
cmp1 = fold (build2 (tcode2, TREE_TYPE (exp), op0, op1));
exp = build2 (TRUTH_ORIF_EXPR, TREE_TYPE (exp), cmp0, cmp1);
do_jump (exp, if_false_label, if_true_label);
do_jump (cmp0, 0, if_true_label);
do_jump (cmp1, if_false_label, if_true_label);
if (drop_through_label)
{
do_pending_stack_adjust ();
emit_label (drop_through_label);
}
}
}
break;
@ -528,15 +531,6 @@ do_jump (tree exp, rtx if_false_label, rtx if_true_label)
else
abort ();
}
if (drop_through_label)
{
/* If do_jump produces code that might be jumped around,
do any stack adjusts from that code, before the place
where control merges in. */
do_pending_stack_adjust ();
emit_label (drop_through_label);
}
}
/* Given a comparison expression EXP for values too wide to be compared