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| author | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-02-17 15:14:29 +0000 |
|---|---|---|
| committer | Alkis Evlogimenos <alkis@evlogimenos.com> | 2004-02-17 15:14:29 +0000 |
| commit | e287a0044073c94603466791194657aeba8f3501 (patch) | |
| tree | 03cf3b79bb64e9b4ef9694ae2bff9d3e85e33a4d | |
| parent | cacca8283328475e2f4e58b492ed9188bbc6caea (diff) | |
| download | llvm-e287a0044073c94603466791194657aeba8f3501.tar.gz llvm-e287a0044073c94603466791194657aeba8f3501.tar.bz2 llvm-e287a0044073c94603466791194657aeba8f3501.tar.xz | |
Peephole optimize SUBmi{16,32} into SUBmi{16,32}b when immediate is 8
bits wide.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11548 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/PeepholeOptimizer.cpp | 3 | ||||
| -rw-r--r-- | lib/Target/X86/X86PeepholeOpt.cpp | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/X86/PeepholeOptimizer.cpp b/lib/Target/X86/PeepholeOptimizer.cpp index 27baa521e8..3e0af70717 100644 --- a/lib/Target/X86/PeepholeOptimizer.cpp +++ b/lib/Target/X86/PeepholeOptimizer.cpp @@ -154,6 +154,7 @@ bool PH::PeepholeOptimize(MachineBasicBlock &MBB, case X86::ADDmi16: case X86::ADDmi32: + case X86::SUBmi16: case X86::SUBmi32: case X86::ANDmi16: case X86::ANDmi32: assert(MI->getNumOperands() == 5 && "These should all have 5 operands!"); if (MI->getOperand(4).isImmediate()) { @@ -165,6 +166,8 @@ bool PH::PeepholeOptimize(MachineBasicBlock &MBB, default: assert(0 && "Unknown opcode value!"); case X86::ADDmi16: Opcode = X86::ADDmi16b; break; case X86::ADDmi32: Opcode = X86::ADDmi32b; break; + case X86::SUBmi16: Opcode = X86::SUBmi16b; break; + case X86::SUBmi32: Opcode = X86::SUBmi32b; break; case X86::ANDmi16: Opcode = X86::ANDmi16b; break; case X86::ANDmi32: Opcode = X86::ANDmi32b; break; } diff --git a/lib/Target/X86/X86PeepholeOpt.cpp b/lib/Target/X86/X86PeepholeOpt.cpp index 27baa521e8..3e0af70717 100644 --- a/lib/Target/X86/X86PeepholeOpt.cpp +++ b/lib/Target/X86/X86PeepholeOpt.cpp @@ -154,6 +154,7 @@ bool PH::PeepholeOptimize(MachineBasicBlock &MBB, case X86::ADDmi16: case X86::ADDmi32: + case X86::SUBmi16: case X86::SUBmi32: case X86::ANDmi16: case X86::ANDmi32: assert(MI->getNumOperands() == 5 && "These should all have 5 operands!"); if (MI->getOperand(4).isImmediate()) { @@ -165,6 +166,8 @@ bool PH::PeepholeOptimize(MachineBasicBlock &MBB, default: assert(0 && "Unknown opcode value!"); case X86::ADDmi16: Opcode = X86::ADDmi16b; break; case X86::ADDmi32: Opcode = X86::ADDmi32b; break; + case X86::SUBmi16: Opcode = X86::SUBmi16b; break; + case X86::SUBmi32: Opcode = X86::SUBmi32b; break; case X86::ANDmi16: Opcode = X86::ANDmi16b; break; case X86::ANDmi32: Opcode = X86::ANDmi32b; break; } |