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| author | Chad Rosier <mcrosier@codeaurora.org> | 2016-11-11 14:10:12 +0000 |
|---|---|---|
| committer | Chad Rosier <mcrosier@codeaurora.org> | 2016-11-11 14:10:12 +0000 |
| commit | 0906927bc751624d560a93598def6d057e3c51c7 (patch) | |
| tree | 707923b090907242f13408900c94ad4ef000f211 /lib/Target/AArch64/AArch64.td | |
| parent | 45849f5ed4afbbff3843f4f21098bbc7ba1dd2a7 (diff) | |
[AArch64] Enable merging of adjacent zero stores for all subtargets.
This optimization merges adjacent zero stores into a wider store.
e.g.,
strh wzr, [x0]
strh wzr, [x0, #2]
; becomes
str wzr, [x0]
e.g.,
str wzr, [x0]
str wzr, [x0, #4]
; becomes
str xzr, [x0]
Previously, this was only enabled for Kryo and Cortex-A57.
Differential Revision: https://reviews.llvm.org/D26396
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@286592 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/AArch64/AArch64.td')
| -rw-r--r-- | lib/Target/AArch64/AArch64.td | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/lib/Target/AArch64/AArch64.td b/lib/Target/AArch64/AArch64.td index 5e658272de8..b7f473f358b 100644 --- a/lib/Target/AArch64/AArch64.td +++ b/lib/Target/AArch64/AArch64.td @@ -61,11 +61,6 @@ def FeatureReserveX18 : SubtargetFeature<"reserve-x18", "ReserveX18", "true", "Reserve X18, making it unavailable " "as a GPR">; -def FeatureMergeNarrowZeroSt : SubtargetFeature<"merge-narrow-zero-st", - "MergeNarrowZeroStores", "true", - "Merge narrow zero store " - "instructions">; - def FeatureUseAA : SubtargetFeature<"use-aa", "UseAA", "true", "Use alias analysis during codegen">; @@ -182,7 +177,6 @@ def ProcA57 : SubtargetFeature<"a57", "ARMProcFamily", "CortexA57", FeatureCrypto, FeatureCustomCheapAsMoveHandling, FeatureFPARMv8, - FeatureMergeNarrowZeroSt, FeatureNEON, FeaturePerfMon, FeaturePostRAScheduler, @@ -253,7 +247,6 @@ def ProcKryo : SubtargetFeature<"kryo", "ARMProcFamily", "Kryo", FeatureCrypto, FeatureCustomCheapAsMoveHandling, FeatureFPARMv8, - FeatureMergeNarrowZeroSt, FeatureNEON, FeaturePerfMon, FeaturePostRAScheduler, |