diff options
| author | collison <collison@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-03-10 23:49:02 +0000 |
|---|---|---|
| committer | collison <collison@138bc75d-0d04-0410-961f-82ee72b054a4> | 2015-03-10 23:49:02 +0000 |
| commit | 116ae5d9b646c966fd9d1e63e2bd126dc13b1b24 (patch) | |
| tree | f670c1c7fe42df5c555b4dc1c2f1199c7b0b11c2 | |
| parent | 0168fc5c6559e61e14c1d4edaf2914037840b1b9 (diff) | |
2015-03-10 Michael Collison <michael.collison@linaro.org>
Backport from trunk r217725.
2014-11-18 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/arm/cortex-a15-neon.md (cortex_a15_vfp_to_from_gp):
Split into...
(cortex_a15_gp_to_vfp): ...This.
(cortex_a15_fp_to_gp): ...And this.
Define and comment bypass from vfp operations to fp->gp moves.
git-svn-id: svn://gcc.gnu.org/svn/gcc/branches/linaro/gcc-4_9-branch@221339 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog.linaro | 11 | ||||
| -rw-r--r-- | gcc/config/arm/cortex-a15-neon.md | 16 |
2 files changed, 24 insertions, 3 deletions
diff --git a/gcc/ChangeLog.linaro b/gcc/ChangeLog.linaro index 73fca0a6707..36e0463d9c2 100644 --- a/gcc/ChangeLog.linaro +++ b/gcc/ChangeLog.linaro @@ -1,5 +1,16 @@ 2015-03-10 Michael Collison <michael.collison@linaro.org> + Backport from trunk r217725. + 2014-11-18 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + + * config/arm/cortex-a15-neon.md (cortex_a15_vfp_to_from_gp): + Split into... + (cortex_a15_gp_to_vfp): ...This. + (cortex_a15_fp_to_gp): ...And this. + Define and comment bypass from vfp operations to fp->gp moves. + +2015-03-10 Michael Collison <michael.collison@linaro.org> + Backport from trunk r217780. 2014-11-19 Wilco Dijkstra <wdijkstr@arm.com> diff --git a/gcc/config/arm/cortex-a15-neon.md b/gcc/config/arm/cortex-a15-neon.md index 02d4a530b2b..bc09cd6a4d7 100644 --- a/gcc/config/arm/cortex-a15-neon.md +++ b/gcc/config/arm/cortex-a15-neon.md @@ -655,10 +655,20 @@ (eq_attr "type" "fmov")) "ca15_issue1,ca15_cx_perm") -(define_insn_reservation "cortex_a15_vfp_to_from_gp" 5 +(define_insn_reservation "cortex_a15_gp_to_vfp" 5 (and (eq_attr "tune" "cortexa15") - (eq_attr "type" "f_mcr, f_mcrr, f_mrc, f_mrrc")) - "ca15_issue1,ca15_ls1+ca15_ls2") + (eq_attr "type" "f_mcr, f_mcrr")) + "ca15_issue1,ca15_ls") + +(define_insn_reservation "cortex_a15_mov_vfp_to_gp" 5 + (and (eq_attr "tune" "cortexa15") + (eq_attr "type" "f_mrc, f_mrrc")) + "ca15_issue1,ca15_ls") + +;; Moves from floating point registers to general purpose registers +;; induce additional latency. +(define_bypass 10 "cortex_a15_vfp*, cortex_a15_neon*, cortex_a15_gp_to_vfp" "cortex_a15_mov_vfp_to_gp") + (define_insn_reservation "cortex_a15_vfp_ariths" 7 (and (eq_attr "tune" "cortexa15") |