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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-23 10:04:33 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-23 10:04:33 +0000 |
| commit | 4899856f3f2fdefaffa0d5355d8dae034da9ec26 (patch) | |
| tree | 5a8f0323c12091c2776f698fa75f292d39574f04 /gcc/testsuite/gcc.target/i386/headmerge-1.c | |
| parent | 0c320ed3adce118bba55e81b27c9dbcc31efa243 (diff) | |
| download | gcc-4899856f3f2fdefaffa0d5355d8dae034da9ec26.tar.gz | |
PR rtl-optimization/44374
* basic-block.h (enum bb_flags): Add BB_MODIFIED.
* df-core.c (df_set_bb_dirty): Set it.
* ifcvt.c (find_memory): Remove function.
(dead_or_predicable): Use can_move_insns_across.
* df.h (can_move_insns_across): Declare function.
* cfgcleanup.c (block_was_dirty): New static variable.
(try_crossjump_bb, try_forward_edges): Test BB_MODIFIED flag rather
than df_get_bb_dirty.
(try_head_merge_bb): New static function.
(try_optimize_cfg): Call it. Call df_analyze if block_was_dirty
is set.
* df-problems.c: Include "target.h"
(df_simulate_find_uses): New static function.
(MEMREF_NORMAL, MEMREF_VOLATILE): New macros.
(find_memory, find_memory_store): New static functions.
(can_move_insns_across): New function.
* Makefile.in (df-problems.o): Update dependencies.
testsuite/
PR rtl-optimization/44374
* gcc.target/arm/headmerge-1.c: New test.
* gcc.target/arm/headmerge-2.c: New test.
* gcc.target/i386/headmerge-1.c: New test.
* gcc.target/i386/headmerge-2.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164552 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/headmerge-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/headmerge-1.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/headmerge-1.c b/gcc/testsuite/gcc.target/i386/headmerge-1.c new file mode 100644 index 00000000000..941028c31db --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/headmerge-1.c @@ -0,0 +1,14 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +/* { dg-final { scan-assembler-times "120" 1 } } */ + +extern void foo1 (int); +extern void foo2 (int); + +void t (int x, int y) +{ + if (y < 5) + foo1 (120); + else + foo2 (120); +} |