[Test] Demonstrate a realignment bug missed in r366765

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@367714 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/statepoint-no-realign-stack.ll b/test/CodeGen/X86/statepoint-no-realign-stack.ll
index 3c2411b622b1601985c7c06aa1174ef202dc52f2..0a1c244fde35652f0656c23719cfaf8256b3d59f 100644 (file)
--- a/test/CodeGen/X86/statepoint-no-realign-stack.ll
+++ b/test/CodeGen/X86/statepoint-no-realign-stack.ll
@@ -52,3 +52,56 @@ define void @no_realign(<8 x i32>* %p) "no-realign-stack" {
   call void @foo() ["deopt" (<8 x i32> %val)]
   ret void
 }
+
+;; Next batch are similiar to the above, but require a reload of the
+;; spilled value as well.
+
+define <4 x i8 addrspace(1)*> @spillfill_can_realign(<4 x i8 addrspace(1)*> %obj) gc "statepoint-example" {
+; CHECK-LABEL: spillfill_can_realign:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    pushq %rbp
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    .cfi_offset %rbp, -16
+; CHECK-NEXT:    movq %rsp, %rbp
+; CHECK-NEXT:    .cfi_def_cfa_register %rbp
+; CHECK-NEXT:    andq $-32, %rsp
+; CHECK-NEXT:    subq $64, %rsp
+; CHECK-NEXT:    vmovaps %ymm0, (%rsp)
+; CHECK-NEXT:    vzeroupper
+; CHECK-NEXT:    callq do_safepoint
+; CHECK-NEXT:  .Ltmp2:
+; CHECK-NEXT:    vmovaps (%rsp), %ymm0
+; CHECK-NEXT:    movq %rbp, %rsp
+; CHECK-NEXT:    popq %rbp
+; CHECK-NEXT:    .cfi_def_cfa %rsp, 8
+; CHECK-NEXT:    retq
+entry:
+  %safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0, <4 x i8 addrspace(1)*> %obj)
+  %obj.relocated = call coldcc <4 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v4p1i8(token %safepoint_token, i32 7, i32 7) ; (%obj, %obj)
+  ret <4 x i8 addrspace(1)*> %obj.relocated
+}
+
+define <4 x i8 addrspace(1)*> @spillfill_no_realign(<4 x i8 addrspace(1)*> %obj) "no-realign-stack" gc "statepoint-example" {
+; CHECK-LABEL: spillfill_no_realign:
+; CHECK:       # %bb.0: # %entry
+; CHECK-NEXT:    subq $40, %rsp
+; CHECK-NEXT:    .cfi_def_cfa_offset 48
+; CHECK-NEXT:    vmovups %ymm0, (%rsp)
+; CHECK-NEXT:    vzeroupper
+; CHECK-NEXT:    callq do_safepoint
+; CHECK-NEXT:  .Ltmp3:
+; CHECK-NEXT:    vmovaps (%rsp), %ymm0
+; CHECK-NEXT:    addq $40, %rsp
+; CHECK-NEXT:    .cfi_def_cfa_offset 8
+; CHECK-NEXT:    retq
+entry:
+  %safepoint_token = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0, <4 x i8 addrspace(1)*> %obj)
+  %obj.relocated = call coldcc <4 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v4p1i8(token %safepoint_token, i32 7, i32 7) ; (%obj, %obj)
+  ret <4 x i8 addrspace(1)*> %obj.relocated
+}
+
+declare void @do_safepoint()
+
+declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
+declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32)
+declare <4 x i8 addrspace(1)*> @llvm.experimental.gc.relocate.v4p1i8(token, i32, i32)