1 files changed, 104 insertions, 0 deletions
diff --git a/test/CodeGen/X86/statepoint-call-lowering.ll b/test/CodeGen/X86/statepoint-call-lowering.ll
new file mode 100644
index 0000000..e1a1369
--- /dev/null
+++ b/test/CodeGen/X86/statepoint-call-lowering.ll
@@ -0,0 +1,104 @@
+; RUN: llc < %s | FileCheck %s
+; This file contains a collection of basic tests to ensure we didn't
+; screw up normal call lowering when there are no deopt or gc arguments.
+
+target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-linux-gnu"
+
+declare zeroext i1 @return_i1()
+declare zeroext i32 @return_i32()
+declare i32* @return_i32ptr()
+declare float @return_float()
+declare void @varargf(i32, ...)
+
+define i1 @test_i1_return() gc "statepoint-example" {
+; CHECK-LABEL: test_i1_return
+; This is just checking that a i1 gets lowered normally when there's no extra
+; state arguments to the statepoint
+; CHECK: pushq %rax
+; CHECK: callq return_i1
+; CHECK: popq %rdx
+; CHECK: retq
+entry:
+  %safepoint_token = tail call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0)
+  %call1 = call zeroext i1 @llvm.experimental.gc.result.i1(i32 %safepoint_token)
+  ret i1 %call1
+}
+
+define i32 @test_i32_return() gc "statepoint-example" {
+; CHECK-LABEL: test_i32_return
+; CHECK: pushq %rax
+; CHECK: callq return_i32
+; CHECK: popq %rdx
+; CHECK: retq
+entry:
+  %safepoint_token = tail call i32 (i32 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i32f(i32 ()* @return_i32, i32 0, i32 0, i32 0)
+  %call1 = call zeroext i32 @llvm.experimental.gc.result.i32(i32 %safepoint_token)
+  ret i32 %call1
+}
+
+define i32* @test_i32ptr_return() gc "statepoint-example" {
+; CHECK-LABEL: test_i32ptr_return
+; CHECK: pushq %rax
+; CHECK: callq return_i32ptr
+; CHECK: popq %rdx
+; CHECK: retq
+entry:
+  %safepoint_token = tail call i32 (i32* ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_p0i32f(i32* ()* @return_i32ptr, i32 0, i32 0, i32 0)
+  %call1 = call i32* @llvm.experimental.gc.result.p0i32(i32 %safepoint_token)
+  ret i32* %call1
+}
+
+define float @test_float_return() gc "statepoint-example" {
+; CHECK-LABEL: test_float_return
+; CHECK: pushq %rax
+; CHECK: callq return_float
+; CHECK: popq %rax
+; CHECK: retq
+entry:
+  %safepoint_token = tail call i32 (float ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_f32f(float ()* @return_float, i32 0, i32 0, i32 0)
+  %call1 = call float @llvm.experimental.gc.result.f32(i32 %safepoint_token)
+  ret float %call1
+}
+
+define i1 @test_relocate(i32 addrspace(1)* %a) gc "statepoint-example" {
+; CHECK-LABEL: test_relocate
+; Check that an ununsed relocate has no code-generation impact
+; CHECK: pushq %rax
+; CHECK: callq return_i1
+; CHECK-NEXT: .Ltmp13:
+; CHECK-NEXT: popq %rdx
+; CHECK-NEXT: retq
+entry:
+  %safepoint_token = tail call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 addrspace(1)* %a)
+  %call1 = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %safepoint_token, i32 4, i32 4)
+  %call2 = call zeroext i1 @llvm.experimental.gc.result.i1(i32 %safepoint_token)
+  ret i1 %call2
+}
+
+define void @test_void_vararg() gc "statepoint-example" {
+; CHECK-LABEL: test_void_vararg
+; Check a statepoint wrapping a *void* returning vararg function works
+; CHECK: callq varargf
+entry:
+  %safepoint_token = tail call i32 (void (i32, ...)*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(void (i32, ...)* @varargf, i32 2, i32 0, i32 42, i32 43, i32 0)
+  ;; if we try to use the result from a statepoint wrapping a
+  ;; non-void-returning varargf, we will experience a crash.
+  ret void
+}
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()*, i32, i32, ...)
+declare i1 @llvm.experimental.gc.result.i1(i32)
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_i32f(i32 ()*, i32, i32, ...)
+declare i32 @llvm.experimental.gc.result.i32(i32)
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_p0i32f(i32* ()*, i32, i32, ...)
+declare i32* @llvm.experimental.gc.result.p0i32(i32)
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_f32f(float ()*, i32, i32, ...)
+declare float @llvm.experimental.gc.result.f32(i32)
+
+declare i32 @llvm.experimental.gc.statepoint.p0f_isVoidi32varargf(void (i32, ...)*, i32, i32, ...)
+
+declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32, i32, i32)