[WebAssembly] Update to more stack-machine-oriented terminology.

WebAssembly has officially switched from being an AST to being a stack
machine. Update various bits of terminology and README.md entries
accordingly.

llvm-svn: 283154

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td b/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td
index e357af63bae..a3e7f012089 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrControl.td
@@ -59,14 +59,14 @@ def BR_TABLE_I64 : I<(outs), (ins I64:$index, variable_ops),
 } // isTerminator = 1, hasCtrlDep = 1, isBarrier = 1
 
 // Placemarkers to indicate the start or end of a block or loop scope. These
-// use/clobber EXPR_STACK to prevent them from being moved into the middle of
+// use/clobber VALUE_STACK to prevent them from being moved into the middle of
 // an expression tree.
-let Uses = [EXPR_STACK], Defs = [EXPR_STACK] in {
+let Uses = [VALUE_STACK], Defs = [VALUE_STACK] in {
 def BLOCK     : I<(outs), (ins), [], "block">;
 def LOOP      : I<(outs), (ins), [], "loop">;
 def END_BLOCK : I<(outs), (ins), [], "end_block">;
 def END_LOOP  : I<(outs), (ins), [], "end_loop">;
-} // Uses = [EXPR_STACK], Defs = [EXPR_STACK]
+} // Uses = [VALUE_STACK], Defs = [VALUE_STACK]
 
 multiclass RETURN<WebAssemblyRegClass vt> {
   def RETURN_#vt : I<(outs), (ins vt:$val), [(WebAssemblyreturn vt:$val)],