derek.holloway
7502bf64a4
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202 lines
5.9 KiB
LLVM
202 lines
5.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s -check-prefix=X64
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; RUN: llc < %s -mtriple=x86_64-windows-msvc | FileCheck %s -check-prefix=UEFI64
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; RUN: llc < %s -mtriple=x86_64-uefi | FileCheck %s -check-prefix=UEFI64
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; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s -check-prefix=X86
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; With -tailcallopt, CodeGen guarantees a tail call optimization
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; for all of these.
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declare dso_local tailcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4)
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define dso_local tailcc i32 @tailcaller(i32 %in1, i32 %in2) nounwind {
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; X64-LABEL: tailcaller:
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; X64: # %bb.0: # %entry
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; X64-NEXT: pushq %rax
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; X64-NEXT: movl %edi, %edx
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; X64-NEXT: movl %esi, %ecx
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; X64-NEXT: popq %rax
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; X64-NEXT: jmp tailcallee # TAILCALL
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;
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; UEFI64-LABEL: tailcaller:
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; UEFI64: # %bb.0: # %entry
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; UEFI64-NEXT: subq $40, %rsp
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; UEFI64-NEXT: movl %ecx, %r8d
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; UEFI64-NEXT: movl %edx, %r9d
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; UEFI64-NEXT: addq $40, %rsp
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; UEFI64-NEXT: jmp tailcallee # TAILCALL
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;
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; X86-LABEL: tailcaller:
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; X86: # %bb.0: # %entry
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; X86-NEXT: subl $16, %esp
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; X86-NEXT: movl %ecx, {{[0-9]+}}(%esp)
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl %edx, {{[0-9]+}}(%esp)
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; X86-NEXT: movl %eax, {{[0-9]+}}(%esp)
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; X86-NEXT: addl $8, %esp
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; X86-NEXT: jmp tailcallee # TAILCALL
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entry:
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%tmp11 = tail call tailcc i32 @tailcallee(i32 %in1, i32 %in2, i32 %in1, i32 %in2)
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ret i32 %tmp11
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}
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declare dso_local tailcc ptr @alias_callee()
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define tailcc noalias ptr @noalias_caller() nounwind {
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; X64-LABEL: noalias_caller:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: popq %rax
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; X64-NEXT: jmp alias_callee # TAILCALL
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;
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; UEFI64-LABEL: noalias_caller:
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; UEFI64: # %bb.0:
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; UEFI64-NEXT: jmp alias_callee # TAILCALL
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;
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; X86-LABEL: noalias_caller:
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; X86: # %bb.0:
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; X86-NEXT: jmp alias_callee # TAILCALL
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%p = tail call tailcc ptr @alias_callee()
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ret ptr %p
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}
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declare dso_local tailcc noalias ptr @noalias_callee()
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define dso_local tailcc ptr @alias_caller() nounwind {
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; X64-LABEL: alias_caller:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: popq %rax
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; X64-NEXT: jmp noalias_callee # TAILCALL
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;
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; UEFI64-LABEL: alias_caller:
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; UEFI64: # %bb.0:
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; UEFI64-NEXT: jmp noalias_callee # TAILCALL
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;
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; X86-LABEL: alias_caller:
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; X86: # %bb.0:
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; X86-NEXT: jmp noalias_callee # TAILCALL
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%p = tail call tailcc noalias ptr @noalias_callee()
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ret ptr %p
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}
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declare dso_local tailcc i32 @i32_callee()
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define dso_local tailcc i32 @ret_undef() nounwind {
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; X64-LABEL: ret_undef:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: popq %rax
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; X64-NEXT: jmp i32_callee # TAILCALL
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;
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; UEFI64-LABEL: ret_undef:
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; UEFI64: # %bb.0:
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; UEFI64-NEXT: jmp i32_callee # TAILCALL
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;
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; X86-LABEL: ret_undef:
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; X86: # %bb.0:
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; X86-NEXT: jmp i32_callee # TAILCALL
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%p = tail call tailcc i32 @i32_callee()
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ret i32 undef
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}
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declare dso_local tailcc void @does_not_return()
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define dso_local tailcc i32 @noret() nounwind {
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; X64-LABEL: noret:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: popq %rax
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; X64-NEXT: jmp does_not_return # TAILCALL
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;
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; UEFI64-LABEL: noret:
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; UEFI64: # %bb.0:
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; UEFI64-NEXT: jmp does_not_return # TAILCALL
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;
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; X86-LABEL: noret:
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; X86: # %bb.0:
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; X86-NEXT: jmp does_not_return # TAILCALL
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tail call tailcc void @does_not_return()
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unreachable
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}
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define dso_local tailcc void @void_test(i32, i32, i32, i32) {
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; X64-LABEL: void_test:
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; X64: # %bb.0: # %entry
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; X64-NEXT: pushq %rax
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; X64-NEXT: .cfi_def_cfa_offset 16
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; X64-NEXT: popq %rax
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; X64-NEXT: .cfi_def_cfa_offset 8
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; X64-NEXT: jmp void_test # TAILCALL
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;
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; UEFI64-LABEL: void_test:
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; UEFI64: # %bb.0: # %entry
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; UEFI64-NEXT: subq $40, %rsp
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; UEFI64-NEXT: .seh_stackalloc 40
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; UEFI64-NEXT: .seh_endprologue
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; UEFI64-NEXT: .seh_startepilogue
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; UEFI64-NEXT: addq $40, %rsp
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; UEFI64-NEXT: .seh_endepilogue
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; UEFI64-NEXT: jmp void_test # TAILCALL
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;
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; X86-LABEL: void_test:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: subl $8, %esp
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: .cfi_offset %esi, -8
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NEXT: movl %esi, {{[0-9]+}}(%esp)
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; X86-NEXT: movl %eax, {{[0-9]+}}(%esp)
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; X86-NEXT: addl $8, %esp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: jmp void_test # TAILCALL
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entry:
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tail call tailcc void @void_test( i32 %0, i32 %1, i32 %2, i32 %3)
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ret void
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}
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define dso_local tailcc i1 @i1test(i32, i32, i32, i32) {
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; X64-LABEL: i1test:
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; X64: # %bb.0: # %entry
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; X64-NEXT: pushq %rax
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; X64-NEXT: .cfi_def_cfa_offset 16
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; X64-NEXT: popq %rax
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; X64-NEXT: .cfi_def_cfa_offset 8
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; X64-NEXT: jmp i1test # TAILCALL
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;
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; UEFI64-LABEL: i1test:
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; UEFI64: # %bb.0: # %entry
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; UEFI64-NEXT: subq $40, %rsp
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; UEFI64-NEXT: .seh_stackalloc 40
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; UEFI64-NEXT: .seh_endprologue
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; UEFI64-NEXT: .seh_startepilogue
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; UEFI64-NEXT: addq $40, %rsp
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; UEFI64-NEXT: .seh_endepilogue
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; UEFI64-NEXT: jmp i1test # TAILCALL
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;
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; X86-LABEL: i1test:
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; X86: # %bb.0: # %entry
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; X86-NEXT: pushl %esi
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: subl $8, %esp
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; X86-NEXT: .cfi_def_cfa_offset 16
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; X86-NEXT: .cfi_offset %esi, -8
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; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X86-NEXT: movl {{[0-9]+}}(%esp), %esi
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; X86-NEXT: movl %esi, {{[0-9]+}}(%esp)
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; X86-NEXT: movl %eax, {{[0-9]+}}(%esp)
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; X86-NEXT: addl $8, %esp
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; X86-NEXT: .cfi_def_cfa_offset 8
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; X86-NEXT: popl %esi
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; X86-NEXT: .cfi_def_cfa_offset 4
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; X86-NEXT: jmp i1test # TAILCALL
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entry:
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%4 = tail call tailcc i1 @i1test( i32 %0, i32 %1, i32 %2, i32 %3)
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ret i1 %4
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}
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