[WebAssembly] Add type prefixes to call instructions

Add return type information to call and call_indirect instructions. This
allows them to be disambiguated without knowledge of the callee.

Differential Revision: http://reviews.llvm.org/D15484

llvm-svn: 255565
diff --git a/llvm/test/CodeGen/WebAssembly/frem.ll b/llvm/test/CodeGen/WebAssembly/frem.ll
index 43552a9..6883703 100644
--- a/llvm/test/CodeGen/WebAssembly/frem.ll
+++ b/llvm/test/CodeGen/WebAssembly/frem.ll
@@ -8,7 +8,7 @@
 ; CHECK-LABEL: frem32:
 ; CHECK-NEXT: .param f32, f32{{$}}
 ; CHECK-NEXT: .result f32{{$}}
-; CHECK-NEXT: call $push0=, fmodf, $0, $1{{$}}
+; CHECK-NEXT: {{^}} f32.call $push0=, fmodf, $0, $1{{$}}
 ; CHECK-NEXT: return $pop0{{$}}
 define float @frem32(float %x, float %y) {
   %a = frem float %x, %y
@@ -18,7 +18,7 @@
 ; CHECK-LABEL: frem64:
 ; CHECK-NEXT: .param f64, f64{{$}}
 ; CHECK-NEXT: .result f64{{$}}
-; CHECK-NEXT: call $push0=, fmod, $0, $1{{$}}
+; CHECK-NEXT: {{^}} f64.call $push0=, fmod, $0, $1{{$}}
 ; CHECK-NEXT: return $pop0{{$}}
 define double @frem64(double %x, double %y) {
   %a = frem double %x, %y