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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2014-04-15 14:04:06 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2014-04-15 14:04:06 +0000 |
| commit | 98a2fdfba6290cc34485d77edfd0a092871ae7fc (patch) | |
| tree | 652dc50b2c332768e18edd452496d53671bc6ed6 | |
| parent | 9ffc6d0bc2a2c50047ef25871e290f75a45bd231 (diff) | |
| download | gcc-98a2fdfba6290cc34485d77edfd0a092871ae7fc.zip gcc-98a2fdfba6290cc34485d77edfd0a092871ae7fc.tar.gz gcc-98a2fdfba6290cc34485d77edfd0a092871ae7fc.tar.bz2 | |
re PR rtl-optimization/60663 (Errors out on valid inline asm)
PR rtl-optimization/60663
* config/arm/arm.c (arm_new_rtx_costs): Improve ASM_OPERANDS case,
avoid 0 cost.
From-SVN: r209419
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 12 |
2 files changed, 15 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6402544..cd6adc4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-04-15 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + + PR rtl-optimization/60663 + * config/arm/arm.c (arm_new_rtx_costs): Improve ASM_OPERANDS case, + avoid 0 cost. + 2014-04-15 Richard Biener <rguenther@suse.de> * lto-streamer.h (LTO_major_version): Bump to 4. diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index e5cf503..773c353 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -10670,10 +10670,16 @@ arm_new_rtx_costs (rtx x, enum rtx_code code, enum rtx_code outer_code, return true; case ASM_OPERANDS: - /* Just a guess. Cost one insn per input. */ - *cost = COSTS_N_INSNS (ASM_OPERANDS_INPUT_LENGTH (x)); - return true; + { + /* Just a guess. Guess number of instructions in the asm + plus one insn per input. Always a minimum of COSTS_N_INSNS (1) + though (see PR60663). */ + int asm_length = MAX (1, asm_str_count (ASM_OPERANDS_TEMPLATE (x))); + int num_operands = ASM_OPERANDS_INPUT_LENGTH (x); + *cost = COSTS_N_INSNS (asm_length + num_operands); + return true; + } default: if (mode != VOIDmode) *cost = COSTS_N_INSNS (ARM_NUM_REGS (mode)); |