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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2015-04-30 17:01:34 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2015-04-30 17:01:34 +0000 |
| commit | 19261b995bae88efa98e73cf9cf002aa1a4163ff (patch) | |
| tree | 629fbbea5d97ea49db1550b3e85ff8255ce3da35 | |
| parent | 6365da9ed071eaa11f25a5a872d5357e66da1db3 (diff) | |
| download | gcc-19261b995bae88efa98e73cf9cf002aa1a4163ff.zip gcc-19261b995bae88efa98e73cf9cf002aa1a4163ff.tar.gz gcc-19261b995bae88efa98e73cf9cf002aa1a4163ff.tar.bz2 | |
[AArch64] Properly cost FABD pattern
* config/aarch64/aarch64.c (aarch64_rtx_costs): Handle pattern for
fabd in ABS case.
From-SVN: r222638
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 14 |
2 files changed, 18 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a4569bb..3710788 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2015-04-30 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + * config/aarch64/aarch64.c (aarch64_rtx_costs): Handle pattern for + fabd in ABS case. + +2015-04-30 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + * config/aarch64/aarch64.md (*eor_one_cmpl_<SHIFT:optab><mode>3_alt): New pattern. (*eor_one_cmpl_<SHIFT:optab>sidi3_alt_ze): Likewise. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 7579f5b..f1aec67 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -6387,7 +6387,19 @@ cost_plus: case ABS: if (GET_MODE_CLASS (mode) == MODE_FLOAT) { - /* FABS and FNEG are analogous. */ + op0 = XEXP (x, 0); + + /* FABD, which is analogous to FADD. */ + if (GET_CODE (op0) == MINUS) + { + *cost += rtx_cost (XEXP (op0, 0), MINUS, 0, speed); + + rtx_cost (XEXP (op0, 1), MINUS, 1, speed); + if (speed) + *cost += extra_cost->fp[mode == DFmode].addsub; + + return true; + } + /* Simple FABS is analogous to FNEG. */ if (speed) *cost += extra_cost->fp[mode == DFmode].neg; } |