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Fix ARMSubtarget feature parsing.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134129 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2011-06-30 02:12:44 +00:00
parent 276365dd4b
commit 4cc446bc40
1 changed files with 7 additions and 10 deletions
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17
lib/Target/ARM/ARMSubtarget.cpp
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@ -120,17 +120,14 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &CPU,
if (TT.find("eabi") != std::string::npos)
TargetABI = ARM_ABI_AAPCS;
// Parse features string. If the first entry in FS (the CPU) is missing,
// insert the architecture feature derived from the target triple. This is
// important for setting features that are implied based on the architecture
// version.
std::string FSWithArch;
if (FS.empty())
FSWithArch = std::string(ARMArchFeature);
else if (FS.find(',') == 0)
FSWithArch = std::string(ARMArchFeature) + FS;
else
// Insert the architecture feature derived from the target triple into the
// feature string. This is important for setting features that are implied
// based on the architecture version.
std::string FSWithArch = std::string(ARMArchFeature);
if (FSWithArch.empty())
FSWithArch = FS;
else if (!FS.empty())
FSWithArch = FSWithArch + "," + FS;
ParseSubtargetFeatures(FSWithArch, CPUString);
// After parsing Itineraries, set ItinData.IssueWidth.