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make arm-use-movt available for all ARM

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Before this patch this flag is IOS specific, but is also
useful for bare project like bootloaders / kernels etc,
since movw / movt prevents simple relocation. Therefore
make this flag more commonly available.

note: this patch depends on a similiar rename in clang

Patch by Jeroen Hofstee.

llvm-svn: 188487
This commit is contained in:
Renato Golin 2013-08-15 20:54:38 +00:00
parent 9877f793c2
commit cacfb5333a
1 changed files with 3 additions and 3 deletions
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6
lib/Target/ARM/ARMSubtarget.cpp
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@ -32,7 +32,7 @@ ReserveR9("arm-reserve-r9", cl::Hidden,
cl::desc("Reserve R9, making it unavailable as GPR"));
static cl::opt<bool>
DarwinUseMOVT("arm-darwin-use-movt", cl::init(true), cl::Hidden);
ArmUseMOVT("arm-use-movt", cl::init(true), cl::Hidden);
static cl::opt<bool>
UseFusedMulOps("arm-use-mulops",
@ -169,12 +169,12 @@ void ARMSubtarget::resetSubtargetFeatures(StringRef CPU, StringRef FS) {
if (isAAPCS_ABI())
stackAlignment = 8;
UseMovt = hasV6T2Ops() && ArmUseMOVT;
if (!isTargetIOS()) {
UseMovt = hasV6T2Ops();
IsR9Reserved = ReserveR9;
} else {
IsR9Reserved = ReserveR9 | !HasV6Ops;
UseMovt = DarwinUseMOVT && hasV6T2Ops();
SupportsTailCall = !getTargetTriple().isOSVersionLT(5, 0);
}