[mips] Correct .MIPS.abiflags fp_abi field for -mfpxx and without .mo…

…dule

Summary: Previously all the test cases set it after initialization with '.module fp=xx'.

Differential Revision: http://reviews.llvm.org/D4489

llvm-svn: 213071

llvm/lib/Target/Mips/AsmParser/MipsAsmParser.cpp

@@ -252,7 +252,7 @@ class MipsAsmParser : public MCTargetAsmParser {
   bool isABI_N32() const { return STI.getFeatureBits() & Mips::FeatureN32; }
   bool isABI_N64() const { return STI.getFeatureBits() & Mips::FeatureN64; }
   bool isABI_O32() const { return STI.getFeatureBits() & Mips::FeatureO32; }
-  bool isABI_FPXX() const { return false; } // TODO: add check for FeatureXX
+  bool isABI_FPXX() const { return STI.getFeatureBits() & Mips::FeatureFPXX; }
 
   bool useOddSPReg() const {
     return !(STI.getFeatureBits() & Mips::FeatureNoOddSPReg);

llvm/test/MC/Mips/mips_abi_flags_xx.s

@@ -5,6 +5,10 @@
 # RUN:   llvm-readobj -sections -section-data -section-relocations - | \
 # RUN:     FileCheck %s -check-prefix=CHECK-OBJ
 
+# RUN: llvm-mc /dev/null -arch=mips -mcpu=mips32 -mattr=fpxx -filetype=obj -o - | \
+# RUN:   llvm-readobj -sections -section-data -section-relocations - | \
+# RUN:     FileCheck %s -check-prefix=CHECK-OBJ
+
 # CHECK-ASM: .module fp=xx
 
 # Checking if the Mips.abiflags were correctly emitted.