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[X86] Add some basic i128 udiv test coverage

This commit is contained in:
Simon Pilgrim 2020-09-27 15:59:53 +01:00
parent d9499c88d1
commit 2d7a12f4ec
1 changed files with 128 additions and 0 deletions
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128
llvm/test/CodeGen/X86/i128-udiv.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s --check-prefixes=CHECK,X86
; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s --check-prefixes=CHECK,X64
; Make sure none of these crash, and that the power-of-two transformations
; trigger correctly.
define i128 @test1(i128 %x) nounwind {
; X86-LABEL: test1:
; X86: # %bb.0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: shrdl $2, %edx, %ecx
; X86-NEXT: shrl $2, %edx
; X86-NEXT: movl %edx, 4(%eax)
; X86-NEXT: movl %ecx, (%eax)
; X86-NEXT: movl $0, 12(%eax)
; X86-NEXT: movl $0, 8(%eax)
; X86-NEXT: retl $4
;
; X64-LABEL: test1:
; X64: # %bb.0:
; X64-NEXT: movq %rsi, %rax
; X64-NEXT: shrq $2, %rax
; X64-NEXT: xorl %edx, %edx
; X64-NEXT: retq
%tmp = udiv i128 %x, 73786976294838206464
ret i128 %tmp
}
define i128 @test2(i128 %x) nounwind {
; X86-LABEL: test2:
; X86: # %bb.0:
; X86-NEXT: pushl %ebp
; X86-NEXT: movl %esp, %ebp
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: andl $-8, %esp
; X86-NEXT: subl $16, %esp
; X86-NEXT: movl 8(%ebp), %esi
; X86-NEXT: movl %esp, %eax
; X86-NEXT: pushl $-1
; X86-NEXT: pushl $-4
; X86-NEXT: pushl $0
; X86-NEXT: pushl $0
; X86-NEXT: pushl 24(%ebp)
; X86-NEXT: pushl 20(%ebp)
; X86-NEXT: pushl 16(%ebp)
; X86-NEXT: pushl 12(%ebp)
; X86-NEXT: pushl %eax
; X86-NEXT: calll __udivti3
; X86-NEXT: addl $32, %esp
; X86-NEXT: movl (%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
; X86-NEXT: movl %edi, 12(%esi)
; X86-NEXT: movl %edx, 8(%esi)
; X86-NEXT: movl %ecx, 4(%esi)
; X86-NEXT: movl %eax, (%esi)
; X86-NEXT: movl %esi, %eax
; X86-NEXT: leal -8(%ebp), %esp
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebp
; X86-NEXT: retl $4
;
; X64-LABEL: test2:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: xorl %edx, %edx
; X64-NEXT: movq $-4, %rcx
; X64-NEXT: callq __udivti3
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%tmp = udiv i128 %x, -73786976294838206464
ret i128 %tmp
}
define i128 @test3(i128 %x) nounwind {
; X86-LABEL: test3:
; X86: # %bb.0:
; X86-NEXT: pushl %ebp
; X86-NEXT: movl %esp, %ebp
; X86-NEXT: pushl %edi
; X86-NEXT: pushl %esi
; X86-NEXT: andl $-8, %esp
; X86-NEXT: subl $16, %esp
; X86-NEXT: movl 8(%ebp), %esi
; X86-NEXT: movl %esp, %eax
; X86-NEXT: pushl $-1
; X86-NEXT: pushl $-5
; X86-NEXT: pushl $-1
; X86-NEXT: pushl $-3
; X86-NEXT: pushl 24(%ebp)
; X86-NEXT: pushl 20(%ebp)
; X86-NEXT: pushl 16(%ebp)
; X86-NEXT: pushl 12(%ebp)
; X86-NEXT: pushl %eax
; X86-NEXT: calll __udivti3
; X86-NEXT: addl $32, %esp
; X86-NEXT: movl (%esp), %eax
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edx
; X86-NEXT: movl {{[0-9]+}}(%esp), %edi
; X86-NEXT: movl %edi, 12(%esi)
; X86-NEXT: movl %edx, 8(%esi)
; X86-NEXT: movl %ecx, 4(%esi)
; X86-NEXT: movl %eax, (%esi)
; X86-NEXT: movl %esi, %eax
; X86-NEXT: leal -8(%ebp), %esp
; X86-NEXT: popl %esi
; X86-NEXT: popl %edi
; X86-NEXT: popl %ebp
; X86-NEXT: retl $4
;
; X64-LABEL: test3:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: movq $-3, %rdx
; X64-NEXT: movq $-5, %rcx
; X64-NEXT: callq __udivti3
; X64-NEXT: popq %rcx
; X64-NEXT: retq
%tmp = udiv i128 %x, -73786976294838206467
ret i128 %tmp
}