CmdArgs.push_back("-export-dynamic");
}
+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 poiter on liunx x86 and x86_64 if optimizing.
+ if ((Triple.getArch() == llvm::Triple::x86_64 ||
+ Triple.getArch() == llvm::Triple::x86) &&
+ Triple.getOS() == llvm::Triple::Linux) {
+ if (Arg *A = Args.getLastArg(options::OPT_O_Group))
+ if (!A->getOption().matches(options::OPT_O0))
+ return false;
+ }
+
+ return true;
+}
+
void Clang::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
CmdArgs.push_back("-mrtd");
// FIXME: Set --enable-unsafe-fp-math.
- if (Args.hasFlag(options::OPT_fno_omit_frame_pointer,
- options::OPT_fomit_frame_pointer))
+ if (shouldUseFramePointer(Args, getToolChain().getTriple()))
CmdArgs.push_back("-mdisable-fp-elim");
if (!Args.hasFlag(options::OPT_fzero_initialized_in_bss,
options::OPT_fno_zero_initialized_in_bss))
--- /dev/null
+// RUN: %clang -ccc-host-triple i386-pc-linux -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-32 %s
+// RUN: %clang -ccc-host-triple i386-pc-linux -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-32 %s
+// RUN: %clang -ccc-host-triple i386-pc-linux -### -S -O2 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK2-32 %s
+// RUN: %clang -ccc-host-triple i386-pc-linux -### -S -O3 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK3-32 %s
+// RUN: %clang -ccc-host-triple i386-pc-linux -### -S -Os %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECKs-32 %s
+
+
+// RUN: %clang -ccc-host-triple x86_64-pc-linux -### -S -O0 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK0-64 %s
+// RUN: %clang -ccc-host-triple x86_64-pc-linux -### -S -O1 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK1-64 %s
+// RUN: %clang -ccc-host-triple x86_64-pc-linux -### -S -O2 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK2-64 %s
+// RUN: %clang -ccc-host-triple x86_64-pc-linux -### -S -O3 %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECK3-64 %s
+// RUN: %clang -ccc-host-triple x86_64-pc-linux -### -S -Os %s -o %t.s 2>&1 | FileCheck -check-prefix=CHECKs-64 %s
+
+// CHECK0-32: -mdisable-fp-elim
+// CHECK1-32-NOT: -mdisable-fp-elim
+// CHECK2-32-NOT: -mdisable-fp-elim
+// CHECK3-32-NOT: -mdisable-fp-elim
+// CHECKs-32-NOT: -mdisable-fp-elim
+
+// CHECK0-64: -mdisable-fp-elim
+// CHECK1-64-NOT: -mdisable-fp-elim
+// CHECK2-64-NOT: -mdisable-fp-elim
+// CHECK3-64-NOT: -mdisable-fp-elim
+// CHECKs-64-NOT: -mdisable-fp-elim