diff options
| author | Andrew Lenharth <andrewl@lenharth.org> | 2005-01-27 08:31:19 +0000 |
|---|---|---|
| committer | Andrew Lenharth <andrewl@lenharth.org> | 2005-01-27 08:31:19 +0000 |
| commit | 04c868ef502d38c0f62549e5ef49987be6881b5d (patch) | |
| tree | 5cbd6ba77da33ef6b7a5dd60c2141498b7e57cf4 /lib/Target/Alpha/AlphaRegisterInfo.cpp | |
| parent | 10b400705dcdef25754b3c3c765c40c6513df1b1 (diff) | |
stack frame fix and zero FP reg fix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19857 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Alpha/AlphaRegisterInfo.cpp')
| -rw-r--r-- | lib/Target/Alpha/AlphaRegisterInfo.cpp | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/lib/Target/Alpha/AlphaRegisterInfo.cpp b/lib/Target/Alpha/AlphaRegisterInfo.cpp index 0c5ca35202..e2cb4b0ad5 100644 --- a/lib/Target/Alpha/AlphaRegisterInfo.cpp +++ b/lib/Target/Alpha/AlphaRegisterInfo.cpp @@ -208,7 +208,7 @@ void AlphaRegisterInfo::emitPrologue(MachineFunction &MF) const { if (NumBytes <= 32767) { MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(-NumBytes).addReg(Alpha::R30); MBB.insert(MBBI, MI); - } else if (NumBytes <= 32767 * 65536) { + } else if ((unsigned long)NumBytes <= (unsigned long)32767 * (unsigned long)65536) { long y = NumBytes / 65536; if (NumBytes % 65536 > 32767) ++y; @@ -217,7 +217,7 @@ void AlphaRegisterInfo::emitPrologue(MachineFunction &MF) const { MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(-(NumBytes - y * 65536)).addReg(Alpha::R30); MBB.insert(MBBI, MI); } else { - std::cerr << "Too big a stack frame\n"; + std::cerr << "Too big a stack frame at " << NumBytes << "\n"; abort(); } } @@ -235,14 +235,21 @@ void AlphaRegisterInfo::emitEpilogue(MachineFunction &MF, if (NumBytes != 0) { - if (NumBytes <= 32000) //FIXME: do this better - { - MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(NumBytes).addReg(Alpha::R30); - MBB.insert(MBBI, MI); - } else { - std::cerr << "Too big a stack frame\n"; - abort(); - } + if (NumBytes <= 32767) { + MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(NumBytes).addReg(Alpha::R30); + MBB.insert(MBBI, MI); + } else if ((unsigned long)NumBytes <= (unsigned long)32767 * (unsigned long)65536) { + long y = NumBytes / 65536; + if (NumBytes % 65536 > 32767) + ++y; + MI=BuildMI(Alpha::LDAH, 2, Alpha::R30).addImm(y).addReg(Alpha::R30); + MBB.insert(MBBI, MI); + MI=BuildMI(Alpha::LDA, 2, Alpha::R30).addImm(NumBytes - y * 65536).addReg(Alpha::R30); + MBB.insert(MBBI, MI); + } else { + std::cerr << "Too big a stack frame at " << NumBytes << "\n"; + abort(); + } } } |