Author: kparzysz
Date: Wed Feb 28 12:31:55 2018
New Revision: 326366
URL: http://llvm.org/viewvc/llvm-project?rev=326366&view=rev
Log:
[Hexagon] Add -ffixed-r19 driver option and translate it to +reserved-r19
Modified:
cfe/trunk/include/clang/Driver/Options.td
cfe/trunk/lib/Driver/ToolChains/Hexagon.cpp
cfe/trunk/test/Driver/hexagon-toolchain-elf.c
Modified: cfe/trunk/include/clang/Driver/Options.td
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Driver/Options.td?rev=326366&r1=326365&r2=326366&view=diff
==============================================================================
--- cfe/trunk/include/clang/Driver/Options.td (original)
+++ cfe/trunk/include/clang/Driver/Options.td Wed Feb 28 12:31:55 2018
@@ -2496,6 +2496,8 @@ def mno_hexagon_hvx_double
: Flag<[ "-" ], "mno-hvx-double">,
Group<m_hexagon_Features_HVX_Group>,
HelpText<"Disable Hexagon Double Vector eXtensions">;
+def ffixed_r19: Flag<["-"], "ffixed-r19">,
+ HelpText<"Reserve the r19 register (Hexagon only)">;
// X86 feature flags
Modified: cfe/trunk/lib/Driver/ToolChains/Hexagon.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Hexagon.cpp?rev=326366&r1=326365&r2=326366&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Hexagon.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Hexagon.cpp Wed Feb 28 12:31:55 2018
@@ -521,11 +521,15 @@ unsigned HexagonToolChain::getOptimizati
void HexagonToolChain::addClangTargetOptions(const ArgList &DriverArgs,
ArgStringList &CC1Args,
Action::OffloadKind) const {
- if (DriverArgs.hasArg(options::OPT_ffp_contract))
- return;
- unsigned OptLevel = getOptimizationLevel(DriverArgs);
- if (OptLevel >= 3)
- CC1Args.push_back("-ffp-contract=fast");
+ if (!DriverArgs.hasArg(options::OPT_ffp_contract)) {
+ unsigned OptLevel = getOptimizationLevel(DriverArgs);
+ if (OptLevel >= 3)
+ CC1Args.push_back("-ffp-contract=fast");
+ }
+ if (DriverArgs.hasArg(options::OPT_ffixed_r19)) {
+ CC1Args.push_back("-target-feature");
+ CC1Args.push_back("+reserved-r19");
+ }
}
void HexagonToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
Modified: cfe/trunk/test/Driver/hexagon-toolchain-elf.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/hexagon-toolchain-elf.c?rev=326366&r1=326365&r2=326366&view=diff
==============================================================================
--- cfe/trunk/test/Driver/hexagon-toolchain-elf.c (original)
+++ cfe/trunk/test/Driver/hexagon-toolchain-elf.c Wed Feb 28 12:31:55 2018
@@ -504,12 +504,22 @@
// CHECK060-NEXT: hexagon-link
//
-----------------------------------------------------------------------------
+// ffixed-r19
+//
-----------------------------------------------------------------------------
+// RUN: %clang -### -target hexagon-unknown-elf -ffixed-r19 %s 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK070 %s
+// CHECK070: "-target-feature" "+reserved-r19"
+// RUN: %clang -### -target hexagon-unknown-elf %s 2>&1 \
+// RUN: | FileCheck --check-prefix=CHECK071 %s
+// CHECK071-NOT: "+reserved-r19"
+
+//
-----------------------------------------------------------------------------
// Misc Defaults
//
-----------------------------------------------------------------------------
// RUN: %clang -### -target hexagon-unknown-elf \
// RUN: -ccc-install-dir %S/Inputs/hexagon_tree/Tools/bin \
// RUN: -mcpu=hexagonv60 \
// RUN: %s 2>&1 \
-// RUN: | FileCheck -check-prefix=CHECK070 %s
-// CHECK070: "-cc1"
-// CHECK070: "-Wreturn-type"
+// RUN: | FileCheck -check-prefix=CHECK080 %s
+// CHECK080: "-cc1"
+// CHECK080: "-Wreturn-type"
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