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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2014-11-24 11:26:04 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2014-11-24 11:26:04 +0000 |
| commit | cd0cb23271a815fa6472029791c76cd604e19708 (patch) | |
| tree | 21494ff43b32bccc6f09070ef033e9a01c3ef53b | |
| parent | 892d9879a895ac23e8672a0817c4cfd0af253bca (diff) | |
| download | gcc-cd0cb23271a815fa6472029791c76cd604e19708.zip gcc-cd0cb23271a815fa6472029791c76cd604e19708.tar.gz gcc-cd0cb23271a815fa6472029791c76cd604e19708.tar.bz2 | |
[AArch64][3/5] Implement fusion of MOVK+MOVK
* config/aarch64/aarch64.c (AARCH64_FUSE_MOVK_MOVK): Define.
(cortexa53_tunings): Specify AARCH64_FUSE_MOVK_MOVK in fuseable_ops.
(cortexa57_tunings): Likewise.
(aarch_macro_fusion_pair_p): Handle AARCH64_FUSE_MOVK_MOVK.
From-SVN: r218013
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 35 |
2 files changed, 40 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0db7927..d58c8c3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2014-11-24 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + * config/aarch64/aarch64.c (AARCH64_FUSE_MOVK_MOVK): Define. + (cortexa53_tunings): Specify AARCH64_FUSE_MOVK_MOVK in fuseable_ops. + (cortexa57_tunings): Likewise. + (aarch_macro_fusion_pair_p): Handle AARCH64_FUSE_MOVK_MOVK. + +2014-11-24 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + * sched-deps.c (sched_macro_fuse_insns): Do not check modified_in_p in the not conditional jump case. * doc/tm.texi (TARGET_SCHED_MACRO_FUSION_PAIR_P): Update description. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 0388e42..5598b5b 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -308,6 +308,7 @@ static const struct cpu_vector_cost cortexa57_vector_cost = #define AARCH64_FUSE_NOTHING (0) #define AARCH64_FUSE_MOV_MOVK (1 << 0) #define AARCH64_FUSE_ADRP_ADD (1 << 1) +#define AARCH64_FUSE_MOVK_MOVK (1 << 2) #if HAVE_DESIGNATED_INITIALIZERS && GCC_VERSION >= 2007 __extension__ @@ -331,7 +332,7 @@ static const struct tune_params cortexa53_tunings = &generic_vector_cost, NAMED_PARAM (memmov_cost, 4), NAMED_PARAM (issue_rate, 2), - NAMED_PARAM (fuseable_ops, (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD)) + NAMED_PARAM (fuseable_ops, (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD | AARCH64_FUSE_MOVK_MOVK)) }; static const struct tune_params cortexa57_tunings = @@ -342,7 +343,7 @@ static const struct tune_params cortexa57_tunings = &cortexa57_vector_cost, NAMED_PARAM (memmov_cost, 4), NAMED_PARAM (issue_rate, 3), - NAMED_PARAM (fuseable_ops, (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD)) + NAMED_PARAM (fuseable_ops, (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD | AARCH64_FUSE_MOVK_MOVK)) }; static const struct tune_params thunderx_tunings = @@ -10455,6 +10456,36 @@ aarch_macro_fusion_pair_p (rtx_insn *prev, rtx_insn *curr) } } + if (simple_sets_p + && (aarch64_tune_params->fuseable_ops & AARCH64_FUSE_MOVK_MOVK)) + { + + /* We're trying to match: + prev (movk) == (set (zero_extract (reg r0) + (const_int 16) + (const_int 32)) + (const_int imm16_1)) + curr (movk) == (set (zero_extract (reg r0) + (const_int 16) + (const_int 48)) + (const_int imm16_2)) */ + + if (GET_CODE (SET_DEST (prev_set)) == ZERO_EXTRACT + && GET_CODE (SET_DEST (curr_set)) == ZERO_EXTRACT + && REG_P (XEXP (SET_DEST (prev_set), 0)) + && REG_P (XEXP (SET_DEST (curr_set), 0)) + && REGNO (XEXP (SET_DEST (prev_set), 0)) + == REGNO (XEXP (SET_DEST (curr_set), 0)) + && CONST_INT_P (XEXP (SET_DEST (prev_set), 2)) + && CONST_INT_P (XEXP (SET_DEST (curr_set), 2)) + && INTVAL (XEXP (SET_DEST (prev_set), 2)) == 32 + && INTVAL (XEXP (SET_DEST (curr_set), 2)) == 48 + && CONST_INT_P (SET_SRC (prev_set)) + && CONST_INT_P (SET_SRC (curr_set))) + return true; + + } + return false; } |