[llvm] r367714 - [Test] Demonstrate a realignment bug missed in r366765

[Philip Reames via llvm-commits]

Author: reames
Date: Fri Aug  2 13:01:43 2019
New Revision: 367714

URL: http://llvm.org/viewvc/llvm-project?rev=367714&view=rev
Log:
[Test] Demonstrate a realignment bug missed in r366765


Modified:
    llvm/trunk/test/CodeGen/X86/statepoint-no-realign-stack.ll

Modified: llvm/trunk/test/CodeGen/X86/statepoint-no-realign-stack.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/statepoint-no-realign-stack.ll?rev=367714&r1=367713&r2=367714&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/statepoint-no-realign-stack.ll (original)
+++ llvm/trunk/test/CodeGen/X86/statepoint-no-realign-stack.ll Fri Aug  2 13:01:43 2019
@@ -52,3 +52,56 @@ define void @no_realign(<8 x i32>* %p) "
   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)