GlobalISel: translate @llvm.va_end intrinsic.

Turns out no-one actually cares about this one (at least) in tree so we can
just drop it entirely.

llvm-svn: 294345

2 files changed, 14 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index a1a1d7b9fb5..eee78ea8cbc 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -579,6 +579,10 @@ bool IRTranslator::translateKnownIntrinsic(const CallInst &CI, Intrinsic::ID ID,
       MIRBuilder.buildDirectDbgValue(Reg, DI.getVariable(), DI.getExpression());
     return true;
   }
+  case Intrinsic::vaend:
+    // No target I know of cares about va_end. Certainly no in-tree target
+    // does. Simplest intrinsic ever!
+    return true;
   case Intrinsic::dbg_value: {
     // This form of DBG_VALUE is target-independent.
     const DbgValueInst &DI = cast<DbgValueInst>(CI);
diff --git a/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll b/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
index bac3017a925..943a57f55cb 100644
--- a/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
+++ b/llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
@@ -1123,3 +1123,13 @@ define i8* @test_const_placement() {
 next:
   ret i8* inttoptr(i32 42 to i8*)
 }
+
+declare void @llvm.va_end(i8*)
+define void @test_va_end(i8* %list) {
+; CHECK-LABEL: name: test_va_end
+; CHECK-NOT: va_end
+; CHECK-NOT: INTRINSIC
+; CHECK: RET_ReallyLR
+  call void @llvm.va_end(i8* %list)
+  ret void
+}