[X86][PowerPC] Support -mlong-double-128
This patch makes the driver option -mlong-double-128 available for X86
and PowerPC. The CC1 option -mlong-double-128 is available on all targets
for users to test on unsupported targets.
On PowerPC, -mlong-double-128 uses the IBM extended double format
because we don't support -mabi=ieeelongdouble yet (D64283).
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D64277
llvm-svn: 365866
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index 0d9e29d..7a07d99 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -2742,7 +2742,9 @@
Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
Opts.AlignDouble = Args.hasArg(OPT_malign_double);
- Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
+ Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128)
+ ? 128
+ : Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
Opts.ROPI = Args.hasArg(OPT_fropi);
Opts.RWPI = Args.hasArg(OPT_frwpi);