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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/cleanuppad-realign.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

81 lines
2.7 KiB
LLVM

; RUN: llc -mtriple=i686-pc-windows-msvc -stack-symbol-ordering=0 < %s | FileCheck --check-prefix=X86 %s
; RUN: llc -mtriple=x86_64-pc-windows-msvc -stack-symbol-ordering=0 < %s | FileCheck --check-prefix=X64 %s
declare i32 @__CxxFrameHandler3(...)
declare void @Dtor(ptr %o)
declare void @f(i32)
define void @realigned_cleanup() personality ptr @__CxxFrameHandler3 {
entry:
; Overalign %o to cause stack realignment.
%o = alloca i64, align 32
invoke void @f(i32 1)
to label %invoke.cont unwind label %ehcleanup
invoke.cont: ; preds = %entry
call void @Dtor(ptr %o)
ret void
ehcleanup: ; preds = %entry
%0 = cleanuppad within none []
call void @Dtor(ptr %o) [ "funclet"(token %0) ]
cleanupret from %0 unwind to caller
}
; X86-LABEL: _realigned_cleanup: # @realigned_cleanup
; X86: pushl %ebp
; X86: movl %esp, %ebp
; X86: pushl %ebx
; X86: pushl %edi
; X86: pushl %esi
; X86: andl $-32, %esp
; X86: subl $96, %esp
; X86: movl %esp, %esi
; EBP will reload from this offset.
; X86: movl %ebp, 28(%esi)
; The last EH reg field is the state number, so dtor adjust is this +4.
; X86: movl $-1, 72(%esi)
; X86-LABEL: "?dtor$2@?0?realigned_cleanup@4HA":
; X86: pushl %ebp
; X86: leal -76(%ebp), %esi
; X86: movl 28(%esi), %ebp
; We used to have a bug where we clobbered ESI after the prologue.
; X86-NOT: movl {{.*}}, %esi
; X86: popl %ebp
; X86: retl # CLEANUPRET
; X64-LABEL: realigned_cleanup: # @realigned_cleanup
; X64: pushq %rbp
; X64: .seh_pushreg %rbp
; X64: pushq %rbx
; X64: .seh_pushreg %rbx
; X64: subq $104, %rsp
; X64: .seh_stackalloc 104
; X64: leaq 96(%rsp), %rbp
; X64: .seh_setframe %rbp, 96
; X64: .seh_endprologue
; X64: andq $-32, %rsp
; X64: movq %rsp, %rbx
; RBP will reload from this offset.
; X64: movq %rbp, 56(%rbx)
; X64: movq $-2, (%rbp)
; X64-LABEL: "?dtor$2@?0?realigned_cleanup@4HA":
; X64: movq %rdx, 16(%rsp)
; X64: pushq %rbp
; X64: .seh_pushreg %rbp
; X64: pushq %rbx
; X64: .seh_pushreg %rbx
; X64: subq $40, %rsp
; X64: .seh_stackalloc 40
; X64: leaq 96(%rdx), %rbp
; X64: .seh_endprologue
; X64: andq $-32, %rdx
; X64: movq %rdx, %rbx
; X64-NOT: mov{{.*}}, %rbx
; X64: .seh_startepilogue
; X64: popq %rbp
; X64: .seh_endepilogue
; X64: retq # CLEANUPRET