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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2005-11-13 00:27:13 +0100 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2005-11-12 23:27:13 +0000 |
| commit | 85a43114c926498ce981a5366e19acf79834b059 (patch) | |
| tree | 469dc7ab23a0f8d94e352c61f2fe1894d53d850f | |
| parent | 4cfe2e7514c65b59a0b5dc3f32e63b5dd7a8c26d (diff) | |
| download | gcc-85a43114c926498ce981a5366e19acf79834b059.zip gcc-85a43114c926498ce981a5366e19acf79834b059.tar.gz gcc-85a43114c926498ce981a5366e19acf79834b059.tar.bz2 | |
tree-ssa-loop-ivopts.c (get_address_cost): Prevent splitting addressing modes during calculation of costs.
* tree-ssa-loop-ivopts.c (get_address_cost): Prevent splitting
addressing modes during calculation of costs.
* testsuite/gcc.dg/tree-ssa/loop-2.c: Fix outcome.
* testsuite/gcc.dg/tree-ssa/loop-3.c: Change type of loop control
variable.
From-SVN: r106842
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-2.c | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-3.c | 2 | ||||
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 6 |
5 files changed, 21 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 30c5214..530fefd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-11-13 Zdenek Dvorak <dvorakz@suse.cz> + + * tree-ssa-loop-ivopts.c (get_address_cost): Prevent splitting + addressing modes during calculation of costs. + 2005-11-12 Eric Botcazou <ebotcazou@adacore.com> * function.c (assign_stack_local_1): Restrict sanity check diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 19a2420..388ea7e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2005-11-13 Zdenek Dvorak <dvorakz@suse.cz> + + * gcc.dg/tree-ssa/loop-2.c: Fix outcome. + * gcc.dg/tree-ssa/loop-3.c: Change type of loop control + variable. + 2005-11-12 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> testsuite/24614 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-2.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-2.c index e086499..589de36 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/loop-2.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-2.c @@ -34,9 +34,10 @@ void xxx(void) /* { dg-final { scan-tree-dump-times " \\+ 17" 1 "vars" } } */ /* The induction variable comparison with 99 should be eliminated - and replaced by comparison of the variable for 17 * iter with 1700. */ + and replaced by comparison of one of the newly created ivs. */ -/* { dg-final { scan-tree-dump-times "1700" 1 "vars" } } */ /* { dg-final { scan-tree-dump-times "iter" 0 "vars" } } */ +/* { dg-final { scan-tree-dump-times "99" 0 "vars" } } */ +/* { dg-final { scan-tree-dump-times "100" 0 "vars" } } */ /* { dg-final { cleanup-tree-dump "vars" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c index 63e582b..82d1d2d 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c @@ -11,7 +11,7 @@ int foo(int); void xxx(void) { - int iter; + long iter; for (iter = 0; iter < 100; iter++) arr_base[iter] = foo (iter); diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 1235379..4affcf4 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -3384,6 +3384,7 @@ get_address_cost (bool symbol_present, bool var_present, acost = costs[symbol_present][var_present][offset_p][ratio_p]; if (!acost) { + int old_cse_not_expected; acost = 0; addr = gen_raw_REG (Pmode, LAST_VIRTUAL_REGISTER + 1); @@ -3412,7 +3413,12 @@ get_address_cost (bool symbol_present, bool var_present, addr = gen_rtx_fmt_ee (PLUS, Pmode, addr, base); start_sequence (); + /* To avoid splitting addressing modes, pretend that no cse will + follow. */ + old_cse_not_expected = cse_not_expected; + cse_not_expected = true; addr = memory_address (Pmode, addr); + cse_not_expected = old_cse_not_expected; seq = get_insns (); end_sequence (); |