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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2019-09-30 14:56:33 +0000 |
|---|---|---|
| committer | Ilya Leoshkevich <iii@gcc.gnu.org> | 2019-09-30 14:56:33 +0000 |
| commit | 20fa157e674d0175f8c2717683462cdaded4d5be (patch) | |
| tree | 352896fb14df54a2a599b18e2707299ae6055830 /gcc/rtl.c | |
| parent | 9343bf99b5e36fa11b723aafa282fd5900a5e525 (diff) | |
| download | gcc-20fa157e674d0175f8c2717683462cdaded4d5be.zip gcc-20fa157e674d0175f8c2717683462cdaded4d5be.tar.gz gcc-20fa157e674d0175f8c2717683462cdaded4d5be.tar.bz2 | |
Introduce rtx_alloca, alloca_raw_REG and alloca_rtx_fmt_*
When one passes short-lived fake rtxes to backends in order to test
their capabilities, it might be beneficial to allocate these rtxes on
stack in order to reduce the load on GC.
Provide macro counterparts of some of the gen_* functions for that
purpose.
gcc/ChangeLog:
2019-09-30 Ilya Leoshkevich <iii@linux.ibm.com>
* emit-rtl.c (init_raw_REG): New function.
(gen_raw_REG): Use init_raw_REG.
* gengenrtl.c (gendef): Emit init_* functions and alloca_*
macros.
* rtl.c (rtx_alloc_stat_v): Use rtx_init.
* rtl.h (rtx_init): New function.
(rtx_alloca): New function.
(init_raw_REG): New function.
(alloca_raw_REG): New macro.
From-SVN: r276303
Diffstat (limited to 'gcc/rtl.c')
| -rw-r--r-- | gcc/rtl.c | 7 |
1 files changed, 1 insertions, 6 deletions
@@ -219,12 +219,7 @@ rtx_alloc_stat_v (RTX_CODE code MEM_STAT_DECL, int extra) rtx rt = ggc_alloc_rtx_def_stat (RTX_CODE_SIZE (code) + extra PASS_MEM_STAT); - /* We want to clear everything up to the FLD array. Normally, this - is one int, but we don't want to assume that and it isn't very - portable anyway; this is. */ - - memset (rt, 0, RTX_HDR_SIZE); - PUT_CODE (rt, code); + rtx_init (rt, code); if (GATHER_STATISTICS) { |