[AMDGPU][MC][GFX9] Added integer clamping support for VOP3 opcodes

See Bug 34152: https://bugs.llvm.org//show_bug.cgi?id=34152

Reviewers: SamWot, artem.tamazov, arsenm

Differential Revision: https://reviews.llvm.org/D36674

llvm-svn: 311006
diff --git a/llvm/lib/Target/AMDGPU/VOPInstructions.td b/llvm/lib/Target/AMDGPU/VOPInstructions.td
index cb754ef..9f2800c 100644
--- a/llvm/lib/Target/AMDGPU/VOPInstructions.td
+++ b/llvm/lib/Target/AMDGPU/VOPInstructions.td
@@ -112,7 +112,7 @@
   let AsmMatchConverter =
     !if(!and(P.IsPacked, isVOP3P),
         "cvtVOP3P",
-        !if(!or(P.HasModifiers, P.HasOMod),
+        !if(!or(P.HasModifiers, !or(P.HasOMod, P.HasIntClamp)),
             "cvtVOP3",
             ""));