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Explicitly set armv7-eabi target triple on ARM.

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This lets the compiler generate FMA instructions, which seems
desirable.
This commit is contained in:
Matt Pharr
2013-07-20 11:19:10 -07:00
parent d7b0c5794e
commit 068fd8098c
1 changed files with 19 additions and 15 deletions
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34
ispc.cpp
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@@ -576,22 +576,26 @@ Target::SupportedTargetISAs() {
std::string std::string
Target::GetTripleString() const { Target::GetTripleString() const {
llvm::Triple triple; llvm::Triple triple;
// Start with the host triple as the default if (m_arch == "arm") {
triple.setTriple(llvm::sys::getDefaultTargetTriple()); triple.setTriple("armv7-eabi");
}
// And override the arch in the host triple based on what the user else {
// specified. Here we need to deal with the fact that LLVM uses one // Start with the host triple as the default
// naming convention for targets TargetRegistry, but wants some triple.setTriple(llvm::sys::getDefaultTargetTriple());
// slightly different ones for the triple. TODO: is there a way to
// have it do this remapping, which would presumably be a bit less
// error prone?
if (m_arch == "x86")
triple.setArchName("i386");
else if (m_arch == "x86-64")
triple.setArchName("x86_64");
else
triple.setArchName(m_arch);
// And override the arch in the host triple based on what the user
// specified. Here we need to deal with the fact that LLVM uses one
// naming convention for targets TargetRegistry, but wants some
// slightly different ones for the triple. TODO: is there a way to
// have it do this remapping, which would presumably be a bit less
// error prone?
if (m_arch == "x86")
triple.setArchName("i386");
else if (m_arch == "x86-64")
triple.setArchName("x86_64");
else
triple.setArchName(m_arch);
}
return triple.str(); return triple.str();
} }