enable SDISel sincos optimization for GNU environments
- add sincos to runtime library if target triple environment is GNU
- added canCombineSinCosLibcall() which checks that sincos is in the RTL and
if the environment is GNU then unsafe fpmath is enabled (required to
preserve errno)
- extended sincos-opt lit test
Reviewed by: Hal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175283 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index 10aa9d6..f2329dc 100644
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -14,6 +14,7 @@
#include "llvm/Target/TargetLowering.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/Triple.h"
#include "llvm/CodeGen/Analysis.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
@@ -34,7 +35,7 @@
/// InitLibcallNames - Set default libcall names.
///
-static void InitLibcallNames(const char **Names) {
+static void InitLibcallNames(const char **Names, const TargetMachine &TM) {
Names[RTLIB::SHL_I16] = "__ashlhi3";
Names[RTLIB::SHL_I32] = "__ashlsi3";
Names[RTLIB::SHL_I64] = "__ashldi3";
@@ -341,12 +342,20 @@
Names[RTLIB::SYNC_FETCH_AND_NAND_4] = "__sync_fetch_and_nand_4";
Names[RTLIB::SYNC_FETCH_AND_NAND_8] = "__sync_fetch_and_nand_8";
- // These are generally not available.
- Names[RTLIB::SINCOS_F32] = 0;
- Names[RTLIB::SINCOS_F64] = 0;
- Names[RTLIB::SINCOS_F80] = 0;
- Names[RTLIB::SINCOS_F128] = 0;
- Names[RTLIB::SINCOS_PPCF128] = 0;
+ if (Triple(TM.getTargetTriple()).getEnvironment() == Triple::GNU) {
+ Names[RTLIB::SINCOS_F32] = "sincosf";
+ Names[RTLIB::SINCOS_F64] = "sincos";
+ Names[RTLIB::SINCOS_F80] = "sincosl";
+ Names[RTLIB::SINCOS_F128] = "sincosl";
+ Names[RTLIB::SINCOS_PPCF128] = "sincosl";
+ } else {
+ // These are generally not available.
+ Names[RTLIB::SINCOS_F32] = 0;
+ Names[RTLIB::SINCOS_F64] = 0;
+ Names[RTLIB::SINCOS_F80] = 0;
+ Names[RTLIB::SINCOS_F128] = 0;
+ Names[RTLIB::SINCOS_PPCF128] = 0;
+ }
}
/// InitLibcallCallingConvs - Set default libcall CallingConvs.
@@ -726,7 +735,7 @@
SupportJumpTables = true;
MinimumJumpTableEntries = 4;
- InitLibcallNames(LibcallRoutineNames);
+ InitLibcallNames(LibcallRoutineNames, TM);
InitCmpLibcallCCs(CmpLibcallCCs);
InitLibcallCallingConvs(LibcallCallingConvs);
}