derek.holloway
7502bf64a4
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153 lines
4.3 KiB
LLVM
153 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc --mtriple=x86_64-- < %s | FileCheck --check-prefix=X64 %s
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; RUN: llc --mtriple=i386-- < %s | FileCheck --check-prefix=X86 %s
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; This test is to ensure rbp/rbx/ebp/esi is correctly saved/restored before clobbered when enable ipra.
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define internal void @callee_clobber_rbp() nounwind norecurse {
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; X64-LABEL: callee_clobber_rbp:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rbp
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; X64-NEXT: #APP
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; X64-NEXT: xorl %ebp, %ebp
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; X64-NEXT: #NO_APP
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; X64-NEXT: popq %rbp
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; X64-NEXT: retq
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;
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; X86-LABEL: callee_clobber_rbp:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: #APP
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; X86-NEXT: xorl %ebp, %ebp
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; X86-NEXT: #NO_APP
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl
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call void asm sideeffect "xor %ebp, %ebp", "~{ebp}"()
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ret void
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}
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define internal void @callee_clobber_rbx(ptr %addr) nounwind norecurse {
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; X64-LABEL: callee_clobber_rbx:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rbx
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; X64-NEXT: #APP
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; X64-NEXT: xorl %ebx, %ebx
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; X64-NEXT: #NO_APP
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; X64-NEXT: popq %rbx
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; X64-NEXT: retq
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call void asm sideeffect "xor %ebx, %ebx", "~{ebx}"()
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ret void
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}
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define internal void @callee_clobber_esi(ptr %addr) nounwind norecurse {
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; X86-LABEL: callee_clobber_esi:
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; X86: # %bb.0:
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; X86-NEXT: pushl %esi
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; X86-NEXT: #APP
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; X86-NEXT: xorl %esi, %esi
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; X86-NEXT: #NO_APP
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; X86-NEXT: popl %esi
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; X86-NEXT: retl
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call void asm sideeffect "xor %esi, %esi", "~{esi}"()
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ret void
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}
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define void @caller_use_rbp() "frame-pointer"="all" nounwind {
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; X64-LABEL: caller_use_rbp:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rbp
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; X64-NEXT: movq %rsp, %rbp
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; X64-NEXT: subq $16, %rsp
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; X64-NEXT: callq callee_clobber_rbp
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; X64-NEXT: movl $5, -4(%rbp)
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; X64-NEXT: addq $16, %rsp
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; X64-NEXT: popq %rbp
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; X64-NEXT: retq
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;
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; X86-LABEL: caller_use_rbp:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: movl %esp, %ebp
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; X86-NEXT: pushl %eax
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; X86-NEXT: calll callee_clobber_rbp
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; X86-NEXT: movl $5, -4(%ebp)
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; X86-NEXT: addl $4, %esp
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl
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call void @callee_clobber_rbp()
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%addr = alloca i32, align 4
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store i32 5, ptr %addr, align 4
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ret void
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}
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define void @caller_use_rbx(i32 %X) nounwind ssp {
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; X64-LABEL: caller_use_rbx:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rbp
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; X64-NEXT: movq %rsp, %rbp
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; X64-NEXT: pushq %rbx
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; X64-NEXT: andq $-32, %rsp
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; X64-NEXT: subq $64, %rsp
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; X64-NEXT: movq %rsp, %rbx
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; X64-NEXT: movq __stack_chk_guard(%rip), %rax
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; X64-NEXT: movq %rax, 32(%rbx)
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; X64-NEXT: movq %rsp, %rax
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; X64-NEXT: movl %edi, %ecx
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; X64-NEXT: leaq 15(,%rcx,4), %rcx
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; X64-NEXT: andq $-16, %rcx
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; X64-NEXT: subq %rcx, %rax
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; X64-NEXT: movq %rax, %rsp
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; X64-NEXT: movq %rbx, %rdi
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; X64-NEXT: callq callee_clobber_rbx
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; X64-NEXT: movq __stack_chk_guard(%rip), %rax
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; X64-NEXT: cmpq 32(%rbx), %rax
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; X64-NEXT: jne .LBB4_2
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; X64-NEXT: # %bb.1:
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; X64-NEXT: leaq -8(%rbp), %rsp
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; X64-NEXT: popq %rbx
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; X64-NEXT: popq %rbp
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; X64-NEXT: retq
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; X64-NEXT: .LBB4_2:
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; X64-NEXT: callq __stack_chk_fail@PLT
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%realign = alloca i32, align 32
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%addr = alloca i32, i32 %X
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call void @callee_clobber_rbx(ptr %realign)
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ret void
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}
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define void @caller_use_esi(i32 %X) nounwind ssp {
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; X86-LABEL: caller_use_esi:
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; X86: # %bb.0:
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; X86-NEXT: pushl %ebp
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; X86-NEXT: movl %esp, %ebp
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; X86-NEXT: pushl %esi
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; X86-NEXT: andl $-32, %esp
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; X86-NEXT: subl $32, %esp
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; X86-NEXT: movl %esp, %esi
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; X86-NEXT: movl 8(%ebp), %eax
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; X86-NEXT: movl __stack_chk_guard, %ecx
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; X86-NEXT: movl %ecx, 16(%esi)
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; X86-NEXT: movl %esp, %ecx
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; X86-NEXT: shll $2, %eax
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; X86-NEXT: subl %eax, %ecx
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; X86-NEXT: movl %ecx, %esp
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; X86-NEXT: movl %esi, %eax
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; X86-NEXT: pushl %eax
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; X86-NEXT: calll callee_clobber_esi
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; X86-NEXT: addl $4, %esp
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; X86-NEXT: movl __stack_chk_guard, %eax
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; X86-NEXT: cmpl 16(%esi), %eax
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; X86-NEXT: jne .LBB5_2
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; X86-NEXT: # %bb.1:
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; X86-NEXT: leal -4(%ebp), %esp
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; X86-NEXT: popl %esi
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl
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; X86-NEXT: .LBB5_2:
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; X86-NEXT: calll __stack_chk_fail
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%realign = alloca i32, align 32
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%addr = alloca i32, i32 %X
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call void @callee_clobber_esi(ptr %realign)
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ret void
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}
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