[Sparc]: Use cmp instruction instead of subcc to compare integers.

[oota-llvm.git] / lib / Target / Sparc / SparcInstr64Bit.td

diff --git a/lib/Target/Sparc/SparcInstr64Bit.td b/lib/Target/Sparc/SparcInstr64Bit.td
index daafb432372420d015df0b4c8aaaa5b6a8060a48..21ac4a7dc169e15eb25a4cc32de202ea6f209a5c 100644 (file)
--- a/lib/Target/Sparc/SparcInstr64Bit.td
+++ b/lib/Target/Sparc/SparcInstr64Bit.td
@@ -160,7 +160,7 @@ def : Pat<(sube i64:$a, i64:$b), (SUBXrr $a, $b)>;
 def : Pat<(addc i64:$a, i64:$b), (ADDCCrr $a, $b)>;
 def : Pat<(subc i64:$a, i64:$b), (SUBCCrr $a, $b)>;
 
-def : Pat<(SPcmpicc i64:$a, i64:$b), (SUBCCrr $a, $b)>;
+def : Pat<(SPcmpicc i64:$a, i64:$b), (CMPrr $a, $b)>;
 
 // Register-immediate instructions.
 
@@ -171,7 +171,7 @@ def : Pat<(xor i64:$a, (i64 simm13:$b)), (XORri $a, (as_i32imm $b))>;
 def : Pat<(add i64:$a, (i64 simm13:$b)), (ADDri $a, (as_i32imm $b))>;
 def : Pat<(sub i64:$a, (i64 simm13:$b)), (SUBri $a, (as_i32imm $b))>;
 
-def : Pat<(SPcmpicc i64:$a, (i64 simm13:$b)), (SUBCCri $a, (as_i32imm $b))>;
+def : Pat<(SPcmpicc i64:$a, (i64 simm13:$b)), (CMPri $a, (as_i32imm $b))>;
 
 } // Predicates = [Is64Bit]
 
@@ -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]