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Driver: Factor duplicated code. 

llvm-svn: 192817
This commit is contained in:
Benjamin Kramer 2013-10-16 17:42:39 +00:00
parent 06a0324f6a
commit 34cb04393a
1 changed files with 25 additions and 36 deletions
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61
clang/lib/Driver/Tools.cpp
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@ -1785,30 +1785,36 @@ static void addDfsanRTLinux(const ToolChain &TC, const ArgList &Args,
addSanitizerRTLinkFlagsLinux(TC, Args, CmdArgs, "dfsan", true);
}
static bool shouldUseFramePointerForTarget(const ArgList &Args,
const llvm::Triple &Triple) {
switch (Triple.getArch()) {
// Don't use a frame pointer on linux if optimizing for certain targets.
case llvm::Triple::mips64:
case llvm::Triple::mips64el:
case llvm::Triple::mips:
case llvm::Triple::mipsel:
case llvm::Triple::systemz:
case llvm::Triple::x86:
case llvm::Triple::x86_64:
if (Triple.isOSLinux())
if (Arg *A = Args.getLastArg(options::OPT_O_Group))
if (!A->getOption().matches(options::OPT_O0))
return false;
return true;
case llvm::Triple::xcore:
return false;
default:
return true;
}
}
static bool shouldUseFramePointer(const ArgList &Args,
const llvm::Triple &Triple) {
if (Arg *A = Args.getLastArg(options::OPT_fno_omit_frame_pointer,
options::OPT_fomit_frame_pointer))
return A->getOption().matches(options::OPT_fno_omit_frame_pointer);
// Don't use a frame pointer on linux x86, x86_64 and z if optimizing.
if ((Triple.getArch() == llvm::Triple::x86_64 ||
Triple.getArch() == llvm::Triple::x86 ||
Triple.getArch() == llvm::Triple::systemz ||
Triple.getArch() == llvm::Triple::mips ||
Triple.getArch() == llvm::Triple::mipsel ||
Triple.getArch() == llvm::Triple::mips64 ||
Triple.getArch() == llvm::Triple::mips64el) &&
Triple.isOSLinux()) {
if (Arg *A = Args.getLastArg(options::OPT_O_Group))
if (!A->getOption().matches(options::OPT_O0))
return false;
}
if (Triple.getArch() == llvm::Triple::xcore)
return false;
return true;
return shouldUseFramePointerForTarget(Args, Triple);
}
static bool shouldUseLeafFramePointer(const ArgList &Args,
@ -1817,24 +1823,7 @@ static bool shouldUseLeafFramePointer(const ArgList &Args,
options::OPT_momit_leaf_frame_pointer))
return A->getOption().matches(options::OPT_mno_omit_leaf_frame_pointer);
// Don't use a leaf frame pointer on linux x86, x86_64 and z if optimizing.
if ((Triple.getArch() == llvm::Triple::x86_64 ||
Triple.getArch() == llvm::Triple::x86 ||
Triple.getArch() == llvm::Triple::systemz ||
Triple.getArch() == llvm::Triple::mips ||
Triple.getArch() == llvm::Triple::mipsel ||
Triple.getArch() == llvm::Triple::mips64 ||
Triple.getArch() == llvm::Triple::mips64el) &&
Triple.isOSLinux()) {
if (Arg *A = Args.getLastArg(options::OPT_O_Group))
if (!A->getOption().matches(options::OPT_O0))
return false;
}
if (Triple.getArch() == llvm::Triple::xcore)
return false;
return true;
return shouldUseFramePointerForTarget(Args, Triple);
}
/// Add a CC1 option to specify the debug compilation directory.