[mips][msa] Float vector constants cannot use ldi.[wd] directly. Bitcast from the...

[oota-llvm.git] / lib / Target / Mips / MipsSubtarget.cpp

diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index 07957ef61bedffc56dcf22d1f06ad9fa1fc7ed32..9688f0e264b646e4397c8943e4dcec6383b15628 100644 (file)
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -72,7 +72,7 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
   InMips16Mode(false), InMips16HardFloat(Mips16HardFloat),
   InMicroMipsMode(false), HasDSP(false), HasDSPR2(false),
   AllowMixed16_32(Mixed16_32 | Mips_Os16), Os16(Mips_Os16), HasMSA(false),
-  StackAlignment(8), RM(_RM), OverrideMode(NoOverride), TM(_TM)
+  RM(_RM), OverrideMode(NoOverride), TM(_TM)
 {
   std::string CPUName = CPU;
   if (CPUName.empty())
@@ -81,6 +81,16 @@ MipsSubtarget::MipsSubtarget(const std::string &TT, const std::string &CPU,
   // Parse features string.
   ParseSubtargetFeatures(CPUName, FS);
 
+  if (InMips16Mode && !TM->Options.UseSoftFloat) {
+    // Hard float for mips16 means essentially to compile as soft float
+    // but to use a runtime library for soft float that is written with
+    // native mips32 floating point instructions (those runtime routines
+    // run in mips32 hard float mode).
+    TM->Options.UseSoftFloat = true;
+    TM->Options.FloatABIType = FloatABI::Soft;
+    InMips16HardFloat = true;
+  }
+
   PreviousInMips16Mode = InMips16Mode;
 
   // Initialize scheduling itinerary for the specified CPU.