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1584024037
Now the offset of UnwindHelp in our EH tables and the offset that we store to in the prologue agree. llvm-svn: 253059
79 lines
2.6 KiB
LLVM
79 lines
2.6 KiB
LLVM
; RUN: llc -mtriple=i686-pc-windows-msvc < %s | FileCheck --check-prefix=X86 %s
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; RUN: llc -mtriple=x86_64-pc-windows-msvc < %s | FileCheck --check-prefix=X64 %s
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declare i32 @__CxxFrameHandler3(...)
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declare void @Dtor(i64* %o)
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declare void @f(i32)
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define void @realigned_cleanup() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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; Overalign %o to cause stack realignment.
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%o = alloca i64, align 32
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invoke void @f(i32 1)
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to label %invoke.cont unwind label %ehcleanup
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invoke.cont: ; preds = %entry
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call void @Dtor(i64* %o)
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ret void
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ehcleanup: ; preds = %entry
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%0 = cleanuppad []
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call void @Dtor(i64* %o)
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cleanupret %0 unwind to caller
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}
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; X86-LABEL: _realigned_cleanup: # @realigned_cleanup
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; X86: pushl %ebp
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; X86: movl %esp, %ebp
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; X86: pushl %ebx
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; X86: pushl %edi
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; X86: pushl %esi
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; X86: andl $-32, %esp
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; X86: subl $96, %esp
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; X86: movl %esp, %esi
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; EBP will reload from this offset.
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; X86: movl %ebp, 28(%esi)
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; The last EH reg field is the state number, so dtor adjust is this +4.
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; X86: movl $-1, 72(%esi)
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; X86-LABEL: "?dtor$2@?0?realigned_cleanup@4HA":
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; X86: pushl %ebp
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; X86: leal -76(%ebp), %esi
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; X86: movl 28(%esi), %ebp
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; We used to have a bug where we clobbered ESI after the prologue.
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; X86-NOT: movl {{.*}}, %esi
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; X86: popl %ebp
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; X86: retl # CLEANUPRET
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; X64-LABEL: realigned_cleanup: # @realigned_cleanup
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: pushq %rbx
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; X64: .seh_pushreg 3
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; X64: subq $104, %rsp
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; X64: .seh_stackalloc 104
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; X64: leaq 96(%rsp), %rbp
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; X64: .seh_setframe 5, 96
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; X64: .seh_endprologue
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; X64: andq $-32, %rsp
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; X64: movq %rsp, %rbx
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; RBP will reload from this offset.
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; X64: movq %rbp, 56(%rbx)
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; X64: movq $-2, (%rbp)
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; X64-LABEL: "?dtor$2@?0?realigned_cleanup@4HA":
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; X64: movq %rdx, 16(%rsp)
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; X64: pushq %rbp
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; X64: .seh_pushreg 5
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; X64: pushq %rbx
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; X64: .seh_pushreg 3
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; X64: subq $40, %rsp
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; X64: .seh_stackalloc 40
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; X64: leaq 96(%rdx), %rbp
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; X64: .seh_endprologue
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; X64: andq $-32, %rdx
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; X64: movq %rdx, %rbx
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; X64-NOT: mov{{.*}}, %rbx
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; X64: popq %rbp
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; X64: retq # CLEANUPRET
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