diff options
| author | Daniel Sanders <daniel.sanders@imgtec.com> | 2014-08-08 10:01:29 +0000 |
|---|---|---|
| committer | Daniel Sanders <daniel.sanders@imgtec.com> | 2014-08-08 10:01:29 +0000 |
| commit | 35837ac9a934ab77422f3eb60da18f7d051f3692 (patch) | |
| tree | 9da4f7d17826b1d70da012db2675983f243bd1c7 /llvm/lib/Target/Mips/MipsRegisterInfo.cpp | |
| parent | 6b0fe34cc5b89e2ed64efbb12385aad25d77ebfa (diff) | |
| download | bcm5719-llvm-35837ac9a934ab77422f3eb60da18f7d051f3692.tar.gz bcm5719-llvm-35837ac9a934ab77422f3eb60da18f7d051f3692.zip | |
[mips] Initial implementation of -mabicalls/-mno-abicalls.
This patch implements the main rules for -mno-abicalls such as reserving $gp,
and emitting the correct .option directive.
Patch by Matheus Almeida and Toma Tabacu
Differential Revision: http://reviews.llvm.org/D4231
llvm-svn: 215194
Diffstat (limited to 'llvm/lib/Target/Mips/MipsRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/MipsRegisterInfo.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsRegisterInfo.cpp b/llvm/lib/Target/Mips/MipsRegisterInfo.cpp index ab371da72ca..20ef3f387dc 100644 --- a/llvm/lib/Target/Mips/MipsRegisterInfo.cpp +++ b/llvm/lib/Target/Mips/MipsRegisterInfo.cpp @@ -149,6 +149,12 @@ getReservedRegs(const MachineFunction &MF) const { for (unsigned I = 0; I < array_lengthof(ReservedGPR64); ++I) Reserved.set(ReservedGPR64[I]); + // For mno-abicalls, GP is a program invariant! + if (!Subtarget.isABICalls()) { + Reserved.set(Mips::GP); + Reserved.set(Mips::GP_64); + } + if (Subtarget.isFP64bit()) { // Reserve all registers in AFGR64. for (RegIter Reg = Mips::AFGR64RegClass.begin(), |
