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Do all target info management in Clang, and drop -target-abi / -target-feature.

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Previously we hardcoded a few important default CPUs, ABIs, and features into
Swift's driver, duplicating work in Clang. Now that we're using Clang's
driver to create the Clang "sub-compiler", we can delegate this work to Clang.

As part of this, I've dropped the options for -target-abi (which was a
frontend-only option anyway) and -target-feature (which was a hidden driver
option and is a frontend-only option in /Clang/). We can revisit this later
if it becomes interesting. I left in -target-cpu, which is now mapped
directly to Clang's -mcpu=.

Swift SVN r22449
This commit is contained in:
Jordan Rose
2014-10-01 23:55:40 +00:00
parent 30c65eff7e
commit 49a6c8eb7b
11 changed files with 43 additions and 128 deletions
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13
lib/Frontend/CompilerInvocation.cpp
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@@ -668,6 +668,9 @@ static bool ParseClangImporterArgs(ClangImporterOptions &Opts, ArgList &Args,
Opts.ModuleCachePath = A->getValue();
}
if (const Arg *A = Args.getLastArg(OPT_target_cpu))
Opts.TargetCPU = A->getValue();
for (const Arg *A : make_range(Args.filtered_begin(OPT_Xcc),
Args.filtered_end())) {
Opts.ExtraArgs.push_back(A->getValue());
@@ -906,16 +909,6 @@ static bool ParseIRGenArgs(IRGenOptions &Opts, ArgList &Args,
Opts.LinkLibraries.push_back(LinkLibrary(A->getValue(), Kind));
}
if (const Arg *A = Args.getLastArg(OPT_target_cpu))
Opts.TargetCPU = A->getValue();
if (const Arg *A = Args.getLastArg(OPT_target_abi))
Opts.TargetABI = A->getValue();
for (const Arg *A : make_range(Args.filtered_begin(OPT_target_feature),
Args.filtered_end())) {
Opts.TargetFeatures.push_back(A->getValue());
}
Opts.DisableLLVMOptzns |= Args.hasArg(OPT_disable_llvm_optzns);
Opts.DisableLLVMARCOpts |= Args.hasArg(OPT_disable_llvm_arc_opts);
Opts.EnableDynamicValueTypeLayout |=