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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-07-27 23:33:05 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-07-27 23:33:05 -0400 |
| commit | 98310eaac7db6d1f1e07a30f3f9970ec1c6e2305 (patch) | |
| tree | 4d254ab3adc014edb2bcde032121e8ca8ed08305 /gcc/expmed.c | |
| parent | d772039ba7150f94f5305fbab4f46a6d7a3fec75 (diff) | |
| download | gcc-98310eaac7db6d1f1e07a30f3f9970ec1c6e2305.zip gcc-98310eaac7db6d1f1e07a30f3f9970ec1c6e2305.tar.gz gcc-98310eaac7db6d1f1e07a30f3f9970ec1c6e2305.tar.bz2 | |
(expand_mult): Properly set ADD_TARGET for add_variant.
From-SVN: r7802
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 994451a..98019ee 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2093,7 +2093,8 @@ expand_mult (mode, op0, op1, target, unsignedp) alg = alg2, variant = negate_variant; /* This proves very useful for division-by-constant. */ - synth_mult (&alg2, val - 1, (alg.cost < mult_cost ? alg.cost : mult_cost) - add_cost); + synth_mult (&alg2, val - 1, + (alg.cost < mult_cost ? alg.cost : mult_cost) - add_cost); if (alg2.cost + add_cost < alg.cost) alg = alg2, variant = add_variant; @@ -2131,7 +2132,9 @@ expand_mult (mode, op0, op1, target, unsignedp) int log = alg.log[opno]; int preserve = preserve_subexpressions_p (); rtx shift_subtarget = preserve ? 0 : accum; - rtx add_target = opno == alg.ops - 1 && target != 0 ? target : 0; + rtx add_target + = (opno == alg.ops - 1 && target != 0 && variant != add_variant + ? target : 0); rtx accum_target = preserve ? 0 : accum; switch (alg.op[opno]) |