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OpenCL: Do not force 64 bit floats for (embedded) targets with only 32bit floats. 

llvm-svn: 197592
This commit is contained in:
Pekka Jaaskelainen 2013-12-18 18:15:03 +00:00
parent 1c9ff122b6
commit 43c39d5f1f
1 changed files with 8 additions and 2 deletions
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10
clang/lib/Basic/TargetInfo.cpp
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@ -244,7 +244,14 @@ void TargetInfo::setForcedLangOptions(LangOptions &Opts) {
LongLongWidth = LongLongAlign = 128;
HalfWidth = HalfAlign = 16;
FloatWidth = FloatAlign = 32;
DoubleWidth = DoubleAlign = 64;
// Embedded 32-bit targets (OpenCL EP) might have double C type
// defined as float. Let's not override this as it might lead
// to generating illegal code that uses 64bit doubles.
if (DoubleWidth != FloatWidth) {
DoubleWidth = DoubleAlign = 64;
DoubleFormat = &llvm::APFloat::IEEEdouble;
}
LongDoubleWidth = LongDoubleAlign = 128;
assert(PointerWidth == 32 || PointerWidth == 64);
@ -259,7 +266,6 @@ void TargetInfo::setForcedLangOptions(LangOptions &Opts) {
HalfFormat = &llvm::APFloat::IEEEhalf;
FloatFormat = &llvm::APFloat::IEEEsingle;
DoubleFormat = &llvm::APFloat::IEEEdouble;
LongDoubleFormat = &llvm::APFloat::IEEEquad;
}
}