From 6d3eeb8c997089fddcc2f46b878f9bd7194e0db2 Mon Sep 17 00:00:00 2001 From: Matthias Braun Date: Thu, 2 Feb 2017 02:23:25 +0000 Subject: [PATCH] AArch64RegisterInfo: Simplify getReservedReg(); NFC After marking a 32bit register and all its super registers the 64bit register does not need to be marked again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293855 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/AArch64/AArch64RegisterInfo.cpp | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/lib/Target/AArch64/AArch64RegisterInfo.cpp b/lib/Target/AArch64/AArch64RegisterInfo.cpp index 98fad71aa18..baf15ac540c 100644 --- a/lib/Target/AArch64/AArch64RegisterInfo.cpp +++ b/lib/Target/AArch64/AArch64RegisterInfo.cpp @@ -118,25 +118,17 @@ AArch64RegisterInfo::getReservedRegs(const MachineFunction &MF) const { // FIXME: avoid re-calculating this every time. BitVector Reserved(getNumRegs()); - markSuperRegs(Reserved, AArch64::SP); - markSuperRegs(Reserved, AArch64::XZR); markSuperRegs(Reserved, AArch64::WSP); markSuperRegs(Reserved, AArch64::WZR); - if (TFI->hasFP(MF) || TT.isOSDarwin()) { - markSuperRegs(Reserved, AArch64::FP); + if (TFI->hasFP(MF) || TT.isOSDarwin()) markSuperRegs(Reserved, AArch64::W29); - } - if (MF.getSubtarget().isX18Reserved()) { - markSuperRegs(Reserved, AArch64::X18); // Platform register - markSuperRegs(Reserved, AArch64::W18); - } + if (MF.getSubtarget().isX18Reserved()) + markSuperRegs(Reserved, AArch64::W18); // Platform register - if (hasBasePointer(MF)) { - markSuperRegs(Reserved, AArch64::X19); + if (hasBasePointer(MF)) markSuperRegs(Reserved, AArch64::W19); - } assert(checkAllSuperRegsMarked(Reserved)); return Reserved; -- 2.50.1