[WebAssembly] Use TSFlags instead of keeping a list of special-case opcodes.

[oota-llvm.git] / lib / Target / WebAssembly / WebAssemblyTargetMachine.cpp

diff --git a/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp b/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
index 38568fc4773e745bf7952df0a797d166d98d6264..b290b4bf7440e6107266f8a156191258e84b97a0 100644 (file)
--- a/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
+++ b/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
@@ -15,11 +15,11 @@
 #include "WebAssembly.h"
 #include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
 #include "WebAssemblyTargetMachine.h"
+#include "WebAssemblyTargetObjectFile.h"
 #include "WebAssemblyTargetTransformInfo.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/CodeGen/RegAllocRegistry.h"
-#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
 #include "llvm/IR/Function.h"
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/TargetRegistry.h"
@@ -45,10 +45,11 @@ WebAssemblyTargetMachine::WebAssemblyTargetMachine(
     const Target &T, const Triple &TT, StringRef CPU, StringRef FS,
     const TargetOptions &Options, Reloc::Model RM, CodeModel::Model CM,
     CodeGenOpt::Level OL)
-    : LLVMTargetMachine(T, TT.isArch64Bit() ? "e-p:64:64-i64:64-n32:64-S128"
-                                            : "e-p:32:32-i64:64-n32:64-S128",
+    : LLVMTargetMachine(T,
+                        TT.isArch64Bit() ? "e-m:e-p:64:64-i64:64-n32:64-S128"
+                                         : "e-m:e-p:32:32-i64:64-n32:64-S128",
                         TT, CPU, FS, Options, RM, CM, OL),
-      TLOF(make_unique<TargetLoweringObjectFileELF>()) {
+      TLOF(make_unique<WebAssemblyTargetObjectFile>()) {
   // WebAssembly type-checks expressions, but a noreturn function with a return
   // type that doesn't match the context will cause a check failure. So we lower
   // LLVM 'unreachable' to ISD::TRAP and then lower that to WebAssembly's
@@ -165,12 +166,6 @@ void WebAssemblyPassConfig::addPreRegAlloc() {
 
   // Prepare store instructions for register stackifying.
   addPass(createWebAssemblyStoreResults());
-
-  // Mark registers as representing wasm's expression stack.
-  addPass(createWebAssemblyRegStackify());
-  // The register coalescing pass has a bad interaction with COPY MIs which have
-  // EXPR_STACK as an extra operand
-  // disablePass(&RegisterCoalescerID);
 }
 
 void WebAssemblyPassConfig::addPostRegAlloc() {
@@ -184,6 +179,9 @@ void WebAssemblyPassConfig::addPostRegAlloc() {
   // Fails with: should be run after register allocation.
   disablePass(&MachineCopyPropagationID);
 
+  // Mark registers as representing wasm's expression stack.
+  addPass(createWebAssemblyRegStackify());
+
   // Run the register coloring pass to reduce the total number of registers.
   addPass(createWebAssemblyRegColoring());