1 files changed, 62 insertions, 0 deletions
diff --git a/test/CodeGen/WebAssembly/func.ll b/test/CodeGen/WebAssembly/func.ll
new file mode 100644
index 0000000000000..6f42dc744ac79
--- /dev/null
+++ b/test/CodeGen/WebAssembly/func.ll
@@ -0,0 +1,62 @@
+; RUN: llc < %s -asm-verbose=false | FileCheck %s
+
+; Test that basic functions assemble as expected.
+
+target datalayout = "e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown"
+
+; CHECK-LABEL: f0:
+; CHECK: return{{$}}
+; CHECK: .size f0,
+define void @f0() {
+  ret void
+}
+
+; CHECK-LABEL: f1:
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: i32.const $push[[NUM:[0-9]+]]=, 0{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+; CHECK: .size f1,
+define i32 @f1() {
+  ret i32 0
+}
+
+; CHECK-LABEL: f2:
+; CHECK-NEXT: .param i32, f32{{$}}
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: i32.const $push[[NUM:[0-9]+]]=, 0{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+; CHECK: .size f2,
+define i32 @f2(i32 %p1, float %p2) {
+  ret i32 0
+}
+
+; CHECK-LABEL: f3:
+; CHECK-NEXT: .param i32, f32{{$}}
+; CHECK-NOT: local
+; CHECK-NEXT: return{{$}}
+; CHECK: .size f3,
+define void @f3(i32 %p1, float %p2) {
+  ret void
+}
+
+; CHECK-LABEL: f4:
+; CHECK-NEXT: .param i32{{$}}
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: local
+define i32 @f4(i32 %x) {
+entry:
+   %c = trunc i32 %x to i1
+   br i1 %c, label %true, label %false
+true:
+   ret i32 0
+false:
+   ret i32 1
+}
+
+; CHECK-LABEL: f5:
+; CHECK-NEXT: .result f32{{$}}
+; CHECK-NEXT: unreachable
+define float @f5()  {
+ unreachable
+}