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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 /gcc/tree-ssa-loop-ivopts.c | |
| 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
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 6 |
1 files changed, 6 insertions, 0 deletions
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 (); |