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| author | Uros Bizjak <uros@gcc.gnu.org> | 2012-11-20 19:02:36 +0100 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2012-11-20 19:02:36 +0100 |
| commit | 7100b5616c1998a115ad2b398a61c6daed5b3b88 (patch) | |
| tree | 34852e73dd7aac72581066d216146b17d51f6061 /gcc/lra-constraints.c | |
| parent | b20ade36e40a97f2836926dd95cbb5a7d087f58f (diff) | |
| download | gcc-7100b5616c1998a115ad2b398a61c6daed5b3b88.zip gcc-7100b5616c1998a115ad2b398a61c6daed5b3b88.tar.gz gcc-7100b5616c1998a115ad2b398a61c6daed5b3b88.tar.bz2 | |
[multiple changes]
2012-11-20 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.md (fix_trunc<MODEF:mode><SWI48:mode>_sse): Macroize
insn from fix_trunc<mode>{si,di}_sse using SWI48 mode iterator.
(peephole2 to avoid vector decoded forms): Macroize peephole2
using MODEF mode iterator. Use SWI48 mode iterator instead of SWI48x.
2012-11-20 Uros Bizjak <ubizjak@gmail.com>
PR target/19398
* config/i386/i386.md
(peephole2 to shorten x87->SSE reload sequences): Remove peephole2.
* config/i386/i386.h (enum ix86_tune_indices)
<IX86_TUNE_SHORTEN_X87_SSE>: Remove.
* config/i386/i386.h (initial_ix86_tune_features): Update.
2012-11-20 Vladimir Makarov <vmakarov@redhat.com>
PR target/19398
* lra-constraints.c (process_alt_operands): Discourage reloads
through secodnary memory.
testsuite/ChangeLog:
2012-11-20 Uros Bizjak <ubizjak@gmail.com>
PR target/19398
* gcc.target/i386/pr19398.c: New test.
From-SVN: r193671
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index 6f19c18..9df7b97 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -1942,6 +1942,19 @@ process_alt_operands (int only_alternative) if (no_regs_p && REG_P (op)) reject++; +#ifdef SECONDARY_MEMORY_NEEDED + /* If reload requires moving value through secondary + memory, it will need one more insn at least. */ + if (this_alternative != NO_REGS + && REG_P (op) && (cl = get_reg_class (REGNO (op))) != NO_REGS + && ((curr_static_id->operand[nop].type != OP_OUT + && SECONDARY_MEMORY_NEEDED (cl, this_alternative, + GET_MODE (op))) + || (curr_static_id->operand[nop].type != OP_IN + && SECONDARY_MEMORY_NEEDED (this_alternative, cl, + GET_MODE (op))))) + losers++; +#endif /* Input reloads can be inherited more often than output reloads can be removed, so penalize output reloads. */ |