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| author | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2013-06-03 00:21:54 +0000 |
|---|---|---|
| committer | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2013-06-03 00:21:54 +0000 |
| commit | 85cc972a06690507a2660fccb198319b0402105f (patch) | |
| tree | 7ec54d8c20fb29845b06316d0a626ef59e11ee0b /lib | |
| parent | 65ca7aa57d5e9b391f02a5686e7622deaac146f9 (diff) | |
| download | llvm-85cc972a06690507a2660fccb198319b0402105f.tar.gz llvm-85cc972a06690507a2660fccb198319b0402105f.tar.bz2 llvm-85cc972a06690507a2660fccb198319b0402105f.tar.xz | |
Sparc: When storing 0, use %g0 directly in the store instruction instead of
using two instructions (sethi and store).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183090 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/Sparc/SparcInstr64Bit.td | 4 | ||||
| -rw-r--r-- | lib/Target/Sparc/SparcInstrInfo.td | 4 |
2 files changed, 8 insertions, 0 deletions
diff --git a/lib/Target/Sparc/SparcInstr64Bit.td b/lib/Target/Sparc/SparcInstr64Bit.td index daafb43237..ed7f05f3c4 100644 --- a/lib/Target/Sparc/SparcInstr64Bit.td +++ b/lib/Target/Sparc/SparcInstr64Bit.td @@ -286,6 +286,10 @@ def : Pat<(truncstorei16 i64:$src, ADDRri:$addr), (STHri ADDRri:$addr, $src)>; def : Pat<(truncstorei32 i64:$src, ADDRrr:$addr), (STrr ADDRrr:$addr, $src)>; def : Pat<(truncstorei32 i64:$src, ADDRri:$addr), (STri ADDRri:$addr, $src)>; +// store 0, addr -> store %g0, addr +def : Pat<(store (i64 0), ADDRrr:$dst), (STXrr ADDRrr:$dst, (i64 G0))>; +def : Pat<(store (i64 0), ADDRri:$dst), (STXri ADDRri:$dst, (i64 G0))>; + } // Predicates = [Is64Bit] diff --git a/lib/Target/Sparc/SparcInstrInfo.td b/lib/Target/Sparc/SparcInstrInfo.td index 8f2ba2655c..45ff113b72 100644 --- a/lib/Target/Sparc/SparcInstrInfo.td +++ b/lib/Target/Sparc/SparcInstrInfo.td @@ -815,4 +815,8 @@ def : Pat<(i32 (extloadi16 ADDRri:$src)), (LDUHri ADDRri:$src)>; def : Pat<(i32 (zextloadi1 ADDRrr:$src)), (LDUBrr ADDRrr:$src)>; def : Pat<(i32 (zextloadi1 ADDRri:$src)), (LDUBri ADDRri:$src)>; +// store 0, addr -> store %g0, addr +def : Pat<(store (i32 0), ADDRrr:$dst), (STrr ADDRrr:$dst, (i32 G0))>; +def : Pat<(store (i32 0), ADDRri:$dst), (STri ADDRri:$dst, (i32 G0))>; + include "SparcInstr64Bit.td" |