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| author | Chris Dewhurst <chris.dewhurst@lero.ie> | 2016-05-23 10:56:36 +0000 |
|---|---|---|
| committer | Chris Dewhurst <chris.dewhurst@lero.ie> | 2016-05-23 10:56:36 +0000 |
| commit | 4f7cac3674d5f06e2acf2694db86e0a37de6f47c (patch) | |
| tree | 8429654217184fb6e4cc42fa1eb935ceeae3b094 /llvm/lib/Target/Sparc/SparcSubtarget.h | |
| parent | 25227fe7b0b78b1377a00c0205c8d66cbfa4c1fa (diff) | |
| download | bcm5719-llvm-4f7cac3674d5f06e2acf2694db86e0a37de6f47c.tar.gz bcm5719-llvm-4f7cac3674d5f06e2acf2694db86e0a37de6f47c.zip | |
[Sparc][LEON] LEON Erratum fix. Insert NOP after LD or LDF instruction.
Due to an erratum in some versions of LEON, we must insert a NOP after any LD or LDF instruction to ensure the processor has time to load the value correctly before using it. This pass will implement that erratum fix.
The code will have no effect for other Sparc, but non-LEON processors.
Differential Review: http://reviews.llvm.org/D20353
llvm-svn: 270417
Diffstat (limited to 'llvm/lib/Target/Sparc/SparcSubtarget.h')
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcSubtarget.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/SparcSubtarget.h b/llvm/lib/Target/Sparc/SparcSubtarget.h index 4ad963e31d8..a69c2efd913 100644 --- a/llvm/lib/Target/Sparc/SparcSubtarget.h +++ b/llvm/lib/Target/Sparc/SparcSubtarget.h @@ -44,6 +44,7 @@ class SparcSubtarget : public SparcGenSubtargetInfo { // LEON features bool HasUmacSmac; bool HasLeonCasa; + bool InsertNOPLoad; SparcInstrInfo InstrInfo; SparcTargetLowering TLInfo; @@ -83,6 +84,7 @@ public: // Leon options bool hasUmacSmac() const { return HasUmacSmac; } bool hasLeonCasa() const { return HasLeonCasa; } + bool insertNOPLoad() const { return InsertNOPLoad; } /// ParseSubtargetFeatures - Parses features string setting specified /// subtarget options. Definition of function is auto generated by tblgen. |
