[llvm] r254861 - [WebAssembly] Support inline asm constraints of type i16 and similar.

[Dan Gohman via llvm-commits]

Author: djg
Date: Sat Dec  5 14:03:44 2015
New Revision: 254861

URL: http://llvm.org/viewvc/llvm-project?rev=254861&view=rev
Log:
[WebAssembly] Support inline asm constraints of type i16 and similar.

Modified:
    llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
    llvm/trunk/test/CodeGen/WebAssembly/inline-asm.ll

Modified: llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp?rev=254861&r1=254860&r2=254861&view=diff
==============================================================================
--- llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp Sat Dec  5 14:03:44 2015
@@ -228,10 +228,13 @@ WebAssemblyTargetLowering::getRegForInli
   if (Constraint.size() == 1) {
     switch (Constraint[0]) {
     case 'r':
-      if (VT == MVT::i32)
-        return std::make_pair(0U, &WebAssembly::I32RegClass);
-      if (VT == MVT::i64)
-        return std::make_pair(0U, &WebAssembly::I64RegClass);
+      assert(VT != MVT::iPTR && "Pointer MVT not expected here");
+      if (VT.isInteger() && !VT.isVector()) {
+        if (VT.getSizeInBits() <= 32)
+          return std::make_pair(0U, &WebAssembly::I32RegClass);
+        if (VT.getSizeInBits() <= 64)
+          return std::make_pair(0U, &WebAssembly::I64RegClass);
+      }
       break;
     default:
       break;

Modified: llvm/trunk/test/CodeGen/WebAssembly/inline-asm.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/WebAssembly/inline-asm.ll?rev=254861&r1=254860&r2=254861&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/WebAssembly/inline-asm.ll (original)
+++ llvm/trunk/test/CodeGen/WebAssembly/inline-asm.ll Sat Dec  5 14:03:44 2015
@@ -56,6 +56,22 @@ entry:
   ret i64 %0
 }
 
+; CHECK-LABEL: X_i16:
+; CHECK: foo $1{{$}}
+; CHECK: i32.store16 $discard=, 0($0), $1{{$}}
+define void @X_i16(i16 * %t) {
+  call void asm sideeffect "foo $0", "=*X,~{dirflag},~{fpsr},~{flags},~{memory}"(i16* %t)
+  ret void
+}
+
+; CHECK-LABEL: X_ptr:
+; CHECK: foo $1{{$}}
+; CHECK: i32.store $discard=, 0($0), $1
+define void @X_ptr(i16 ** %t) {
+  call void asm sideeffect "foo $0", "=*X,~{dirflag},~{fpsr},~{flags},~{memory}"(i16** %t)
+  ret void
+}
+
 attributes #0 = { nounwind }
 
 !0 = !{i32 47}