[WebAssembly] Suffix output operands with '='.

This distinguishes input operands from output operands. This is something of
a syntactic experiment to see whether the mild amount of clutter this adds is
outweighed by the extra information it conveys to the reader.

llvm-svn: 253922
diff --git a/llvm/test/CodeGen/WebAssembly/select.ll b/llvm/test/CodeGen/WebAssembly/select.ll
index 0fb7eaa..eab7720 100644
--- a/llvm/test/CodeGen/WebAssembly/select.ll
+++ b/llvm/test/CodeGen/WebAssembly/select.ll
@@ -7,8 +7,8 @@
 target triple = "wasm32-unknown-unknown"
 
 ; CHECK-LABEL: select_i32:
-; CHECK: i32.eq $push[[NUM1:[0-9]+]], $2, $pop[[NUM0:[0-9]+]]{{$}}
-; CHECK: i32.select $push{{[0-9]+}}, $pop[[NUM1]], $0, $1
+; CHECK: i32.eq $push[[NUM1:[0-9]+]]=, $2, $pop[[NUM0:[0-9]+]]{{$}}
+; CHECK: i32.select $push{{[0-9]+}}=, $pop[[NUM1]], $0, $1{{$}}
 define i32 @select_i32(i32 %a, i32 %b, i32 %cond) {
   %cc = icmp eq i32 %cond, 0
   %result = select i1 %cc, i32 %a, i32 %b
@@ -16,8 +16,8 @@
 }
 
 ; CHECK-LABEL: select_i64:
-; CHECK: i32.eq $push[[NUM1:[0-9]+]], $2, $pop[[NUM0:[0-9]+]]{{$}}
-; CHECK: i64.select $push{{[0-9]+}}, $pop[[NUM1]], $0, $1
+; CHECK: i32.eq $push[[NUM1:[0-9]+]]=, $2, $pop[[NUM0:[0-9]+]]{{$}}
+; CHECK: i64.select $push{{[0-9]+}}=, $pop[[NUM1]], $0, $1{{$}}
 define i64 @select_i64(i64 %a, i64 %b, i32 %cond) {
   %cc = icmp eq i32 %cond, 0
   %result = select i1 %cc, i64 %a, i64 %b
@@ -25,8 +25,8 @@
 }
 
 ; CHECK-LABEL: select_f32:
-; CHECK: i32.eq $push[[NUM1:[0-9]+]], $2, $pop[[NUM0:[0-9]+]]{{$}}
-; CHECK: f32.select $push{{[0-9]+}}, $pop[[NUM1]], $0, $1
+; CHECK: i32.eq $push[[NUM1:[0-9]+]]=, $2, $pop[[NUM0:[0-9]+]]{{$}}
+; CHECK: f32.select $push{{[0-9]+}}=, $pop[[NUM1]], $0, $1{{$}}
 define float @select_f32(float %a, float %b, i32 %cond) {
   %cc = icmp eq i32 %cond, 0
   %result = select i1 %cc, float %a, float %b
@@ -34,8 +34,8 @@
 }
 
 ; CHECK-LABEL: select_f64:
-; CHECK: i32.eq $push[[NUM1:[0-9]+]], $2, $pop[[NUM0:[0-9]+]]{{$}}
-; CHECK: f64.select $push{{[0-9]+}}, $pop[[NUM1]], $0, $1
+; CHECK: i32.eq $push[[NUM1:[0-9]+]]=, $2, $pop[[NUM0:[0-9]+]]{{$}}
+; CHECK: f64.select $push{{[0-9]+}}=, $pop[[NUM1]], $0, $1{{$}}
 define double @select_f64(double %a, double %b, i32 %cond) {
   %cc = icmp eq i32 %cond, 0
   %result = select i1 %cc, double %a, double %b