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a72e83c26e
For historic reasons, the behavior of .align differs between targets. Fortunately, there are alternatives, .p2align and .balign, which make the interpretation of the parameter explicit, and which behave consistently across targets. This patch teaches MC to use .p2align instead of .align, so that people reading code for multiple architectures don't have to remember which way each platform does its .align directive. Differential Revision: http://reviews.llvm.org/D16549 llvm-svn: 258750
200 lines
6.7 KiB
LLVM
200 lines
6.7 KiB
LLVM
; RUN: llc -verify-machineinstrs -mtriple=i686-pc-windows-msvc < %s | FileCheck --check-prefix=X86 %s
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; RUN: llc -verify-machineinstrs -mtriple=x86_64-pc-windows-msvc < %s | FileCheck --check-prefix=X64 %s
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%struct.Dtor = type { i8 }
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define void @simple_cleanup() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%o = alloca %struct.Dtor, align 1
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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 x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o) #2
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ret void
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ehcleanup: ; preds = %entry
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%0 = cleanuppad within none []
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call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o) #2 [ "funclet"(token %0) ]
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cleanupret from %0 unwind to caller
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}
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; CHECK: simple_cleanup: # @simple_cleanup
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; CHECK: pushq %rbp
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; CHECK: subq $48, %rsp
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; CHECK: leaq 48(%rsp), %rbp
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; CHECK: movq $-2, -8(%rbp)
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; CHECK: movl $1, %ecx
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; CHECK: callq f
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; CHECK: callq "??1Dtor@@QAE@XZ"
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; CHECK: nop
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; CHECK: addq $48, %rsp
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; CHECK: popq %rbp
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; CHECK: retq
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; CHECK: "?dtor$2@?0?simple_cleanup@4HA":
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; CHECK: callq "??1Dtor@@QAE@XZ"
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; CHECK: retq
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; CHECK: $cppxdata$simple_cleanup:
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; CHECK-NEXT: .long 429065506
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; CHECK-NEXT: .long 1
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; CHECK-NEXT: .long ($stateUnwindMap$simple_cleanup)@IMGREL
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 3
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; CHECK-NEXT: .long ($ip2state$simple_cleanup)@IMGREL
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; UnwindHelp offset should match the -2 store above
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; CHECK-NEXT: .long 40
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; CHECK-NEXT: .long 0
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; CHECK-NEXT: .long 1
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declare void @f(i32) #0
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind
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declare x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor*) #1
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define void @nested_cleanup() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%o1 = alloca %struct.Dtor, align 1
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%o2 = alloca %struct.Dtor, align 1
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invoke void @f(i32 1)
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to label %invoke.cont unwind label %cleanup.outer
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invoke.cont: ; preds = %entry
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invoke void @f(i32 2)
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to label %invoke.cont.1 unwind label %cleanup.inner
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invoke.cont.1: ; preds = %invoke.cont
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call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o2) #2
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invoke void @f(i32 3)
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to label %invoke.cont.2 unwind label %cleanup.outer
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invoke.cont.2: ; preds = %invoke.cont.1
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call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o1) #2
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ret void
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cleanup.inner: ; preds = %invoke.cont
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%0 = cleanuppad within none []
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call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o2) #2 [ "funclet"(token %0) ]
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cleanupret from %0 unwind label %cleanup.outer
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cleanup.outer: ; preds = %invoke.cont.1, %cleanup.inner, %entry
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%1 = cleanuppad within none []
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call x86_thiscallcc void @"\01??1Dtor@@QAE@XZ"(%struct.Dtor* %o1) #2 [ "funclet"(token %1) ]
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cleanupret from %1 unwind to caller
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}
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; X86-LABEL: _nested_cleanup:
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; X86: movl $1, (%esp)
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; X86: calll _f
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; X86: movl $2, (%esp)
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; X86: calll _f
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; X86: movl $3, (%esp)
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; X86: calll _f
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; X86: "?dtor$[[cleanup_inner:[0-9]+]]@?0?nested_cleanup@4HA":
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; X86: LBB1_[[cleanup_inner]]: # %cleanup.inner{{$}}
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; X86: pushl %ebp
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; X86: leal {{.*}}(%ebp), %ecx
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; X86: calll "??1Dtor@@QAE@XZ"
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; X86: popl %ebp
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; X86: retl
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; X86: "?dtor$[[cleanup_outer:[0-9]+]]@?0?nested_cleanup@4HA":
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; X86: LBB1_[[cleanup_outer]]: # %cleanup.outer{{$}}
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; X86: pushl %ebp
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; X86: leal {{.*}}(%ebp), %ecx
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; X86: calll "??1Dtor@@QAE@XZ"
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; X86: popl %ebp
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; X86: retl
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; X86: L__ehtable$nested_cleanup:
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; X86: .long 429065506
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; X86: .long 2
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; X86: .long ($stateUnwindMap$nested_cleanup)
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; X86: .long 0
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; X86: .long 0
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; X86: .long 0
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; X86: .long 0
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; X86: .long 0
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; X86: .long 1
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; X86: $stateUnwindMap$nested_cleanup:
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; X86: .long -1
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; X86: .long "?dtor$[[cleanup_outer]]@?0?nested_cleanup@4HA"
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; X86: .long 0
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; X86: .long "?dtor$[[cleanup_inner]]@?0?nested_cleanup@4HA"
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; X64-LABEL: nested_cleanup:
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; X64: .Lfunc_begin1:
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; X64: .Ltmp13:
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; X64: movl $1, %ecx
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; X64: callq f
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; X64: .Ltmp15:
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; X64: movl $2, %ecx
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; X64: callq f
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; X64: .Ltmp16:
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; X64: callq "??1Dtor@@QAE@XZ"
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; X64: .Ltmp17:
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; X64: movl $3, %ecx
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; X64: callq f
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; X64: .Ltmp18:
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; X64: "?dtor$[[cleanup_inner:[0-9]+]]@?0?nested_cleanup@4HA":
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; X64: LBB1_[[cleanup_inner]]: # %cleanup.inner{{$}}
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; X64: pushq %rbp
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; X64: leaq {{.*}}(%rbp), %rcx
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; X64: callq "??1Dtor@@QAE@XZ"
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; X64: popq %rbp
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; X64: retq
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; X64: .seh_handlerdata
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; X64: .text
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; X64: .seh_endproc
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; X64: "?dtor$[[cleanup_outer:[0-9]+]]@?0?nested_cleanup@4HA":
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; X64: LBB1_[[cleanup_outer]]: # %cleanup.outer{{$}}
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; X64: pushq %rbp
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; X64: leaq {{.*}}(%rbp), %rcx
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; X64: callq "??1Dtor@@QAE@XZ"
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; X64: popq %rbp
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; X64: retq
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; X64: .section .xdata,"dr"
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; X64-NEXT: .p2align 2
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; X64: $cppxdata$nested_cleanup:
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; X64-NEXT: .long 429065506
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; X64-NEXT: .long 2
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; X64-NEXT: .long ($stateUnwindMap$nested_cleanup)@IMGREL
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; X64-NEXT: .long 0
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; X64-NEXT: .long 0
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; X64-NEXT: .long 5
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; X64-NEXT: .long ($ip2state$nested_cleanup)@IMGREL
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; X64-NEXT: .long 56
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; X64-NEXT: .long 0
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; X64-NEXT: .long 1
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; X64: $stateUnwindMap$nested_cleanup:
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; X64-NEXT: .long -1
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; X64-NEXT: .long "?dtor$[[cleanup_outer]]@?0?nested_cleanup@4HA"@IMGREL
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; X64-NEXT: .long 0
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; X64-NEXT: .long "?dtor$[[cleanup_inner]]@?0?nested_cleanup@4HA"@IMGREL
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; X64: $ip2state$nested_cleanup:
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; X64-NEXT: .long .Lfunc_begin1@IMGREL
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; X64-NEXT: .long -1
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; X64-NEXT: .long .Ltmp13@IMGREL
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; X64-NEXT: .long 0
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; X64-NEXT: .long .Ltmp15@IMGREL
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; X64-NEXT: .long 1
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; X64-NEXT: .long .Ltmp17@IMGREL
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; X64-NEXT: .long 0
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; X64-NEXT: .long .Ltmp18@IMGREL+1
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; X64-NEXT: .long -1
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attributes #0 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind }
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