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Added -float-abi and auto-detection logic for ARM.

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Even though this argument design conflates two separate concepts
(ABI and hardware/software implementation), I chose to go
with it since users are liekly know it from GCC and the
combination of softloat operations with hardfloat ABI makes
no sense.

I didn't implement it for old LLVM versions, as ARM EABI
exception handling requires LLVM 3.3+ anyway, without which
LDC would be useless anyway.
This commit is contained in:
David Nadlinger 2013-05-10 22:56:52 +02:00
parent 2fb8d6d51b
commit 6a1bc70bd7
5 changed files with 189 additions and 7 deletions
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10
driver/cl_options.cpp
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@ -310,6 +310,16 @@ cl::opt<llvm::CodeModel::Model> mCodeModel("code-model",
clEnumValN(llvm::CodeModel::Large, "large", "Large code model"),
clEnumValEnd));
cl::opt<FloatABI::Type> mFloatABI("float-abi",
cl::desc("ABI/operations to use for floating-point types:"),
cl::init(FloatABI::Default),
cl::values(
clEnumValN(FloatABI::Default, "default", "Target default floating-point ABI"),
clEnumValN(FloatABI::Soft, "soft", "Software floating-point ABI and operations"),
clEnumValN(FloatABI::SoftFP, "softfp", "Soft-float ABI, but hardware floating-point instructions"),
clEnumValN(FloatABI::Hard, "hard", "Hardware floating-point ABI and instructions"),
clEnumValEnd));
static cl::opt<bool, true, FlagParser> asserts("asserts",
cl::desc("(*) Enable assertions"),
cl::value_desc("bool"),