1 files changed, 127 insertions, 0 deletions
diff --git a/test/CodeGen/WebAssembly/call.ll b/test/CodeGen/WebAssembly/call.ll
new file mode 100644
index 000000000000..9158ccec0979
--- /dev/null
+++ b/test/CodeGen/WebAssembly/call.ll
@@ -0,0 +1,127 @@
+; RUN: llc < %s -asm-verbose=false | FileCheck %s
+
+; Test that basic call operations assemble as expected.
+
+target datalayout = "e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown"
+
+declare i32 @i32_nullary()
+declare i32 @i32_unary(i32)
+declare i32 @i32_binary(i32, i32)
+declare i64 @i64_nullary()
+declare float @float_nullary()
+declare double @double_nullary()
+declare void @void_nullary()
+
+; CHECK-LABEL: call_i32_nullary:
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: {{^}} i32.call $push[[NUM:[0-9]+]]=, i32_nullary{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define i32 @call_i32_nullary() {
+  %r = call i32 @i32_nullary()
+  ret i32 %r
+}
+
+; CHECK-LABEL: call_i64_nullary:
+; CHECK-NEXT: .result i64{{$}}
+; CHECK-NEXT: {{^}} i64.call $push[[NUM:[0-9]+]]=, i64_nullary{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define i64 @call_i64_nullary() {
+  %r = call i64 @i64_nullary()
+  ret i64 %r
+}
+
+; CHECK-LABEL: call_float_nullary:
+; CHECK-NEXT: .result f32{{$}}
+; CHECK-NEXT: {{^}} f32.call $push[[NUM:[0-9]+]]=, float_nullary{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define float @call_float_nullary() {
+  %r = call float @float_nullary()
+  ret float %r
+}
+
+; CHECK-LABEL: call_double_nullary:
+; CHECK-NEXT: .result f64{{$}}
+; CHECK-NEXT: {{^}} f64.call $push[[NUM:[0-9]+]]=, double_nullary{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define double @call_double_nullary() {
+  %r = call double @double_nullary()
+  ret double %r
+}
+
+; CHECK-LABEL: call_void_nullary:
+; CHECK-NEXT: {{^}} call void_nullary{{$}}
+; CHECK-NEXT: return{{$}}
+define void @call_void_nullary() {
+  call void @void_nullary()
+  ret void
+}
+
+; CHECK-LABEL: call_i32_unary:
+; CHECK-NEXT: .param i32{{$}}
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: {{^}} i32.call $push[[NUM:[0-9]+]]=, i32_unary, $0{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define i32 @call_i32_unary(i32 %a) {
+  %r = call i32 @i32_unary(i32 %a)
+  ret i32 %r
+}
+
+; CHECK-LABEL: call_i32_binary:
+; CHECK-NEXT: .param i32, i32{{$}}
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: {{^}} i32.call $push[[NUM:[0-9]+]]=, i32_binary, $0, $1{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define i32 @call_i32_binary(i32 %a, i32 %b) {
+  %r = call i32 @i32_binary(i32 %a, i32 %b)
+  ret i32 %r
+}
+
+; CHECK-LABEL: call_indirect_void:
+; CHECK-NEXT: .param i32{{$}}
+; CHECK-NEXT: {{^}} call_indirect $0{{$}}
+; CHECK-NEXT: return{{$}}
+define void @call_indirect_void(void ()* %callee) {
+  call void %callee()
+  ret void
+}
+
+; CHECK-LABEL: call_indirect_i32:
+; CHECK-NEXT: .param i32{{$}}
+; CHECK-NEXT: .result i32{{$}}
+; CHECK-NEXT: {{^}} i32.call_indirect $push[[NUM:[0-9]+]]=, $0{{$}}
+; CHECK-NEXT: return $pop[[NUM]]{{$}}
+define i32 @call_indirect_i32(i32 ()* %callee) {
+  %t = call i32 %callee()
+  ret i32 %t
+}
+
+; CHECK-LABEL: tail_call_void_nullary:
+; CHECK-NEXT: {{^}} call void_nullary{{$}}
+; CHECK-NEXT: return{{$}}
+define void @tail_call_void_nullary() {
+  tail call void @void_nullary()
+  ret void
+}
+
+; CHECK-LABEL: fastcc_tail_call_void_nullary:
+; CHECK-NEXT: {{^}} call void_nullary{{$}}
+; CHECK-NEXT: return{{$}}
+define void @fastcc_tail_call_void_nullary() {
+  tail call fastcc void @void_nullary()
+  ret void
+}
+
+; CHECK-LABEL: coldcc_tail_call_void_nullary:
+; CHECK-NEXT: {{^}} call void_nullary
+; CHECK-NEXT: return{{$}}
+define void @coldcc_tail_call_void_nullary() {
+  tail call coldcc void @void_nullary()
+  ret void
+}
+
+; FIXME test the following:
+;  - More argument combinations.
+;  - Tail call.
+;  - Interesting returns (struct, multiple).
+;  - Vararg.