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| author | Jan Hubicka <jh@suse.cz> | 2001-11-07 13:35:16 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-11-07 12:35:16 +0000 |
| commit | b972dd0201d69cfd0a422292706c1d0b8b4f1b2d (patch) | |
| tree | 03db7da381d0f1ca3f877597e7c68578266a36ab /gcc/expmed.c | |
| parent | ab901443dc4df860aef92b4f4b8189771663f994 (diff) | |
| download | gcc-b972dd0201d69cfd0a422292706c1d0b8b4f1b2d.zip gcc-b972dd0201d69cfd0a422292706c1d0b8b4f1b2d.tar.gz gcc-b972dd0201d69cfd0a422292706c1d0b8b4f1b2d.tar.bz2 | |
expmed.c (expand_mult): Force operand to register before computing cost.
* expmed.c (expand_mult): Force operand to register before computing
cost.
* i386.c (x86_decompose_lea): New global vairable.
* i386.h (x86_decompose_lea): Declare.
(TARGET_DECOMPOSE_LEA): New macro.
(RTX_COST): Handle leas properly.
From-SVN: r46823
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 10c5141..9435a62 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2406,6 +2406,10 @@ expand_mult (mode, op0, op1, target, unsignedp) int mult_cost; enum {basic_variant, negate_variant, add_variant} variant = basic_variant; + /* op0 must be register to make mult_cost match the precomputed + shiftadd_cost array. */ + op0 = force_reg (mode, op0); + /* Try to do the computation three ways: multiply by the negative of OP1 and then negate, do the multiplication directly, or do multiplication by OP1 - 1. */ |