derek.holloway
7502bf64a4
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135 lines
3.8 KiB
LLVM
135 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-- | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s --check-prefix=X64
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; Make sure none of these crash, and that the power-of-two transformations
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; trigger correctly.
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define i128 @test1(i128 %x) nounwind {
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; X86-LABEL: test1:
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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 %edi
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; X86-NEXT: pushl %esi
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; X86-NEXT: andl $-16, %esp
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; X86-NEXT: movl 36(%ebp), %ecx
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; X86-NEXT: movl 8(%ebp), %eax
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; X86-NEXT: movl %ecx, %esi
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; X86-NEXT: sarl $31, %esi
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; X86-NEXT: movl %esi, %edx
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; X86-NEXT: shrl $30, %edx
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; X86-NEXT: movl 24(%ebp), %edi
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; X86-NEXT: addl %esi, %edi
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; X86-NEXT: adcl 28(%ebp), %esi
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; X86-NEXT: adcl 32(%ebp), %edx
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; X86-NEXT: adcl $0, %ecx
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; X86-NEXT: shrdl $2, %ecx, %edx
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; X86-NEXT: movl %ecx, %esi
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; X86-NEXT: sarl $2, %esi
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; X86-NEXT: sarl $31, %ecx
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; X86-NEXT: movl %ecx, 12(%eax)
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; X86-NEXT: movl %ecx, 8(%eax)
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; X86-NEXT: movl %esi, 4(%eax)
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; X86-NEXT: movl %edx, (%eax)
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; X86-NEXT: leal -8(%ebp), %esp
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; X86-NEXT: popl %esi
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; X86-NEXT: popl %edi
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl $4
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;
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; X64-LABEL: test1:
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; X64: # %bb.0:
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; X64-NEXT: movq %rsi, %rax
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; X64-NEXT: sarq $63, %rax
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; X64-NEXT: movq %rax, %rdx
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; X64-NEXT: shrq $62, %rdx
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; X64-NEXT: addq %rdi, %rax
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; X64-NEXT: adcq %rsi, %rdx
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; X64-NEXT: movq %rdx, %rax
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; X64-NEXT: sarq $2, %rax
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; X64-NEXT: sarq $63, %rdx
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; X64-NEXT: retq
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%tmp = sdiv i128 %x, 73786976294838206464
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ret i128 %tmp
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}
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define i128 @test2(i128 %x) nounwind {
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; X86-LABEL: test2:
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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 %ebx
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; X86-NEXT: pushl %edi
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; X86-NEXT: pushl %esi
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; X86-NEXT: andl $-16, %esp
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; X86-NEXT: subl $16, %esp
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; X86-NEXT: movl 36(%ebp), %eax
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; X86-NEXT: movl %eax, %edx
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; X86-NEXT: sarl $31, %edx
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; X86-NEXT: movl %edx, %ecx
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; X86-NEXT: shrl $30, %ecx
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; X86-NEXT: movl 24(%ebp), %esi
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; X86-NEXT: addl %edx, %esi
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; X86-NEXT: adcl 28(%ebp), %edx
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; X86-NEXT: adcl 32(%ebp), %ecx
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; X86-NEXT: adcl $0, %eax
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; X86-NEXT: shrdl $2, %eax, %ecx
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; X86-NEXT: movl %eax, %esi
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; X86-NEXT: sarl $31, %esi
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; X86-NEXT: sarl $2, %eax
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; X86-NEXT: xorl %edx, %edx
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; X86-NEXT: negl %ecx
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; X86-NEXT: movl $0, %edi
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; X86-NEXT: sbbl %eax, %edi
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; X86-NEXT: movl $0, %ebx
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; X86-NEXT: sbbl %esi, %ebx
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; X86-NEXT: sbbl %esi, %edx
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; X86-NEXT: movl 8(%ebp), %eax
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; X86-NEXT: movl %ecx, (%eax)
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; X86-NEXT: movl %edi, 4(%eax)
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; X86-NEXT: movl %ebx, 8(%eax)
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; X86-NEXT: movl %edx, 12(%eax)
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; X86-NEXT: leal -12(%ebp), %esp
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; X86-NEXT: popl %esi
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; X86-NEXT: popl %edi
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; X86-NEXT: popl %ebx
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; X86-NEXT: popl %ebp
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; X86-NEXT: retl $4
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;
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; X64-LABEL: test2:
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; X64: # %bb.0:
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; X64-NEXT: movq %rsi, %rcx
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; X64-NEXT: sarq $63, %rcx
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; X64-NEXT: movq %rcx, %rax
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; X64-NEXT: shrq $62, %rax
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; X64-NEXT: addq %rdi, %rcx
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; X64-NEXT: adcq %rsi, %rax
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; X64-NEXT: movq %rax, %rcx
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; X64-NEXT: sarq $63, %rcx
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; X64-NEXT: sarq $2, %rax
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; X64-NEXT: xorl %edx, %edx
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; X64-NEXT: negq %rax
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; X64-NEXT: sbbq %rcx, %rdx
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; X64-NEXT: retq
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%tmp = sdiv i128 %x, -73786976294838206464
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ret i128 %tmp
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}
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define i128 @test3(i128 %x) nounwind {
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; X86-LABEL: test3:
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; X86 doesn't have __divti3, so the urem is expanded into a loop.
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; X86: udiv-do-while
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;
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; X64-LABEL: test3:
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; X64: # %bb.0:
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; X64-NEXT: pushq %rax
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; X64-NEXT: movq $-3, %rdx
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; X64-NEXT: movq $-5, %rcx
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; X64-NEXT: callq __divti3@PLT
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; X64-NEXT: popq %rcx
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; X64-NEXT: retq
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%tmp = sdiv i128 %x, -73786976294838206467
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ret i128 %tmp
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}
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