Index: llvm/trunk/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
===================================================================
--- llvm/trunk/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
+++ llvm/trunk/lib/Target/AMDGPU/AsmParser/AMDGPUAsmParser.cpp
@@ -1107,12 +1107,6 @@
     return Res;
   }
 
-  AMDGPUOperand &Op = static_cast<AMDGPUOperand &>(*Operands.back());
-  if (Op.isImm() && Op.Imm.IsFPImm) {
-    Error(Parser.getTok().getLoc(), "floating point operands not allowed with sext() modifier");
-    return MatchOperand_ParseFail;
-  }
-
   AMDGPUOperand::Modifiers Mods = {false, false, false};
   if (Sext) {
     if (getLexer().isNot(AsmToken::RParen)) {
@@ -1124,6 +1118,7 @@
   }
   
   if (Mods.hasIntModifiers()) {
+    AMDGPUOperand &Op = static_cast<AMDGPUOperand &>(*Operands.back());
     Op.setModifiers(Mods);
   }
   return MatchOperand_Success;
Index: llvm/trunk/test/MC/AMDGPU/vop1.s
===================================================================
--- llvm/trunk/test/MC/AMDGPU/vop1.s
+++ llvm/trunk/test/MC/AMDGPU/vop1.s
@@ -374,3 +374,13 @@
 // NOSICI: v_cos_f16 v1, v2
 // VI: v_cos_f16_e32 v1, v2 ; encoding: [0x02,0x95,0x02,0x7e]
 v_cos_f16 v1, v2
+
+//===----------------------------------------------------------------------===//
+// Floating point literals
+//===----------------------------------------------------------------------===//
+
+// GCN: v_mov_b32_e32 v0, 0.5 ; encoding: [0xf0,0x02,0x00,0x7e]
+v_mov_b32 v0, 0.5
+
+// GCN: v_mov_b32_e32 v0, 0x40480000 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x00,0x48,0x40]
+v_mov_b32 v0, 3.125
\ No newline at end of file
Index: llvm/trunk/test/MC/AMDGPU/vop2.s
===================================================================
--- llvm/trunk/test/MC/AMDGPU/vop2.s
+++ llvm/trunk/test/MC/AMDGPU/vop2.s
@@ -94,6 +94,14 @@
 // SICI: v_mul_i32_i24_e64 v1, 3, s3 ; encoding: [0x01,0x00,0x12,0xd2,0x83,0x06,0x00,0x00]
 v_mul_i32_i24 v1, 3, s3
 
+// SICI: v_add_i32_e32 v0, vcc, 0.5, v0 ; encoding: [0xf0,0x00,0x00,0x4a]
+// VI: v_add_i32_e32 v0, vcc, 0.5, v0 ; encoding: [0xf0,0x00,0x00,0x32]
+v_add_i32 v0, vcc, 0.5, v0
+
+// SICI: v_add_i32_e32 v0, vcc, 0x40480000, v0 ; encoding: [0xff,0x00,0x00,0x4a,0x00,0x00,0x48,0x40]
+// VI: v_add_i32_e32 v0, vcc, 0x40480000, v0 ; encoding: [0xff,0x00,0x00,0x32,0x00,0x00,0x48,0x40]
+v_add_i32 v0, vcc, 3.125, v0
+
 //===----------------------------------------------------------------------===//
 // Instructions
 //===----------------------------------------------------------------------===//