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| author | Misha Brukman <brukman+llvm@gmail.com> | 2004-06-29 23:35:32 +0000 |
|---|---|---|
| committer | Misha Brukman <brukman+llvm@gmail.com> | 2004-06-29 23:35:32 +0000 |
| commit | 5459dfb47b65a4341efabd942f132f924c9131ec (patch) | |
| tree | ce6e48d976cf98b621bf4d86b547b638d32ae413 | |
| parent | 938be23e90e04259117e1de1f08a30d0f48462c7 (diff) | |
| download | llvm-5459dfb47b65a4341efabd942f132f924c9131ec.zip llvm-5459dfb47b65a4341efabd942f132f924c9131ec.tar.gz llvm-5459dfb47b65a4341efabd942f132f924c9131ec.tar.bz2 | |
Only allocate non-volatile registers R13-31 (for now).
llvm-svn: 14500
| -rw-r--r-- | llvm/lib/Target/PowerPC/PowerPCRegisterInfo.td | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/llvm/lib/Target/PowerPC/PowerPCRegisterInfo.td b/llvm/lib/Target/PowerPC/PowerPCRegisterInfo.td index d6aaf4b..da7152e 100644 --- a/llvm/lib/Target/PowerPC/PowerPCRegisterInfo.td +++ b/llvm/lib/Target/PowerPC/PowerPCRegisterInfo.td @@ -73,9 +73,17 @@ def TBL : SPR<4>; def TBU : SPR<5>; /// Register classes: one for floats and another for non-floats. -def GPRC : RegisterClass<i32, 4, [R0, R1, R2, R3, R4, R5, R6, R7, - R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, - R22, R23, R24, R25, R26, R27, R28, R29, R30, R31]>; +def GPRC : RegisterClass<i32, 4, [R13, R14, R15, R16, R17, R18, R19, R20, R21, + R22, R23, R24, R25, R26, R27, R28, R29, R30, + R31, R0, R1, R2, R3, R4, R5, R6, R7, + R8, R9, R10, R11, R12]> { + let Methods = [{ + iterator allocation_order_end(MachineFunction &MF) const { + return end()-13; // do not allocate r0-r12 + } + }]; +} + def FPRC : RegisterClass<f64, 8, [F0, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21, F22, F23, F24, F25, F26, F27, F28, F29, F30, F31]>; |