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Correctly handle the degenerated triple "thumb".

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Fixes a crash in llc where some parts think the target is thumb and others think
it is ARM.

llvm-svn: 197607
This commit is contained in:
Rafael Espindola 2013-12-18 21:29:44 +00:00
parent 2639825176
commit 6dc5fe883a
2 changed files with 10 additions and 6 deletions
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9
lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
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@ -89,14 +89,11 @@ std::string ARM_MC::ParseARMTriple(StringRef TT, StringRef CPU) {
unsigned Idx = 0;
// FIXME: Enhance Triple helper class to extract ARM version.
bool isThumb = false;
bool isThumb = triple.getArch() == Triple::thumb;
if (Len >= 5 && TT.substr(0, 4) == "armv")
Idx = 4;
else if (Len >= 6 && TT.substr(0, 5) == "thumb") {
isThumb = true;
if (Len >= 7 && TT[5] == 'v')
Idx = 6;
}
else if (Len >= 7 && TT.substr(0, 6) == "thumbv")
Idx = 6;
bool NoCPU = CPU == "generic" || CPU.empty();
std::string ARMArchFeature;

7
test/CodeGen/Thumb/triple.ll Normal file
View File

@ -0,0 +1,7 @@
; RUN: llc < %s -mtriple=thumb | FileCheck %s
; CHECK: .code 16
define void @f() {
ret void
}