diff options
| author | Akira Hatanaka <ahatanaka@mips.com> | 2011-12-19 19:28:37 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2011-12-19 19:28:37 +0000 |
| commit | 3c9f336361dd24c7bb80903bbda7b1040a09486c (patch) | |
| tree | 12f2a24ba0c6c80bcb8ec505e88646ceba7ab5df /llvm/lib | |
| parent | 92a939ae73760c1b515eae91855b25bc6e15b4df (diff) | |
| download | bcm5719-llvm-3c9f336361dd24c7bb80903bbda7b1040a09486c.tar.gz bcm5719-llvm-3c9f336361dd24c7bb80903bbda7b1040a09486c.zip | |
Remove the restriction on the first operand of the add node in SelectAddr.
This change reduces the number of instructions generated.
For example,
(load (add (sub $n0, $n1), (MipsLo got(s))))
results in the following sequence of instructions:
1. sub $n2, $n0, $n1
2. lw got(s)($n2)
Previously, three instructions were needed.
1. sub $n2, $n0, $n1
2. addiu $n3, $n2, got(s)
3. lw 0($n3)
llvm-svn: 146888
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp index b17239d9392..4ac51e84ef0 100644 --- a/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp +++ b/llvm/lib/Target/Mips/MipsISelDAGToDAG.cpp @@ -160,9 +160,7 @@ SelectAddr(SDValue Addr, SDValue &Base, SDValue &Offset) { // Generate: // lui $2, %hi($CPI1_0) // lwc1 $f0, %lo($CPI1_0)($2) - if ((Addr.getOperand(0).getOpcode() == MipsISD::Hi || - Addr.getOperand(0).getOpcode() == ISD::LOAD) && - Addr.getOperand(1).getOpcode() == MipsISD::Lo) { + if (Addr.getOperand(1).getOpcode() == MipsISD::Lo) { SDValue LoVal = Addr.getOperand(1); if (isa<ConstantPoolSDNode>(LoVal.getOperand(0)) || isa<GlobalAddressSDNode>(LoVal.getOperand(0))) { |
