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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2010-07-12 18:54:08 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2010-07-12 18:54:08 +0000 |
| commit | 462f85cedc8375e893fd1179f5ecab498085c78d (patch) | |
| tree | bbd31df3f0f8e6de8d0b1dc923fc0b8c2395a5ce /gcc/expmed.c | |
| parent | d474db84488c71868483429070d545811adbc677 (diff) | |
| download | gcc-462f85cedc8375e893fd1179f5ecab498085c78d.zip gcc-462f85cedc8375e893fd1179f5ecab498085c78d.tar.gz gcc-462f85cedc8375e893fd1179f5ecab498085c78d.tar.bz2 | |
Makefile.in (expmed.o, [...]): Depend on expmed.h.
gcc/
* Makefile.in (expmed.o, target-globals.o): Depend on expmed.h.
* expmed.h: New file.
* expmed.c (default_target_costs): New variable.
(this_target_costs): New conditional variable.
(sdiv_pow2_cheap, smod_pow2_cheap, zero_cost, add_cost, neg_cost)
(shift_cost, shiftadd_cost, shiftsub0_cost, shiftsub1_cost, mul_cost)
(sdiv_cost, udiv_cost, mul_widen_cost, mul_highpart_cost): Delete.
* target-globals.h (this_target_expmed): Declare.
(target_globals): Add a expmed field.
(restore_target_globals): Copy the expmed field to
this_target_expmed.
* target-globals.c: Include expmed.h.
(default_target_globals): Initialize the expmed field.
(save_target_globals): Likewise.
From-SVN: r162094
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 479adbc..c10d52e 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -38,6 +38,12 @@ along with GCC; see the file COPYING3. If not see #include "langhooks.h" #include "df.h" #include "target.h" +#include "expmed.h" + +struct target_expmed default_target_expmed; +#if SWITCHABLE_TARGET +struct target_expmed *this_target_expmed = &default_target_expmed; +#endif static void store_fixed_bit_field (rtx, unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT, @@ -59,14 +65,6 @@ static rtx expand_sdiv_pow2 (enum machine_mode, rtx, HOST_WIDE_INT); /* Test whether a value is zero of a power of two. */ #define EXACT_POWER_OF_2_OR_ZERO_P(x) (((x) & ((x) - 1)) == 0) -/* Nonzero means divides or modulus operations are relatively cheap for - powers of two, so don't use branches; emit the operation instead. - Usually, this will mean that the MD file will emit non-branch - sequences. */ - -static bool sdiv_pow2_cheap[2][NUM_MACHINE_MODES]; -static bool smod_pow2_cheap[2][NUM_MACHINE_MODES]; - #ifndef SLOW_UNALIGNED_ACCESS #define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) STRICT_ALIGNMENT #endif @@ -96,21 +94,6 @@ static bool smod_pow2_cheap[2][NUM_MACHINE_MODES]; #define gen_extzv(a,b,c,d) NULL_RTX #endif -/* Cost of various pieces of RTL. Note that some of these are indexed by - shift count and some by mode. */ -static int zero_cost[2]; -static int add_cost[2][NUM_MACHINE_MODES]; -static int neg_cost[2][NUM_MACHINE_MODES]; -static int shift_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD]; -static int shiftadd_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD]; -static int shiftsub0_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD]; -static int shiftsub1_cost[2][NUM_MACHINE_MODES][MAX_BITS_PER_WORD]; -static int mul_cost[2][NUM_MACHINE_MODES]; -static int sdiv_cost[2][NUM_MACHINE_MODES]; -static int udiv_cost[2][NUM_MACHINE_MODES]; -static int mul_widen_cost[2][NUM_MACHINE_MODES]; -static int mul_highpart_cost[2][NUM_MACHINE_MODES]; - void init_expmed (void) { |