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[X86] Add a signed test case for PR38622. Use nounwind to reduce the output on the unsigned test case. 

llvm-svn: 340121
This commit is contained in:
Craig Topper 2018-08-18 06:00:16 +00:00
parent cc5dbbf759
commit 911efbb926
1 changed files with 57 additions and 25 deletions
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82
llvm/test/CodeGen/X86/divide-by-constant.ll
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@ -331,62 +331,38 @@ entry:
ret i64 %div
}
define { i64, i32 } @PR38622(i64) {
define { i64, i32 } @PR38622(i64) nounwind {
; X32-LABEL: PR38622:
; X32: # %bb.0:
; X32-NEXT: pushl %ebp
; X32-NEXT: .cfi_def_cfa_offset 8
; X32-NEXT: pushl %ebx
; X32-NEXT: .cfi_def_cfa_offset 12
; X32-NEXT: pushl %edi
; X32-NEXT: .cfi_def_cfa_offset 16
; X32-NEXT: pushl %esi
; X32-NEXT: .cfi_def_cfa_offset 20
; X32-NEXT: subl $12, %esp
; X32-NEXT: .cfi_def_cfa_offset 32
; X32-NEXT: .cfi_offset %esi, -20
; X32-NEXT: .cfi_offset %edi, -16
; X32-NEXT: .cfi_offset %ebx, -12
; X32-NEXT: .cfi_offset %ebp, -8
; X32-NEXT: movl {{[0-9]+}}(%esp), %ebx
; X32-NEXT: movl {{[0-9]+}}(%esp), %ebp
; X32-NEXT: pushl $0
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: pushl $-294967296 # imm = 0xEE6B2800
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: pushl %ebp
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: pushl %ebx
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: calll __udivdi3
; X32-NEXT: addl $16, %esp
; X32-NEXT: .cfi_adjust_cfa_offset -16
; X32-NEXT: movl %eax, %esi
; X32-NEXT: movl %edx, %edi
; X32-NEXT: pushl $0
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: pushl $-294967296 # imm = 0xEE6B2800
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: pushl %ebp
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: pushl %ebx
; X32-NEXT: .cfi_adjust_cfa_offset 4
; X32-NEXT: calll __umoddi3
; X32-NEXT: addl $16, %esp
; X32-NEXT: .cfi_adjust_cfa_offset -16
; X32-NEXT: movl %eax, %ecx
; X32-NEXT: movl %esi, %eax
; X32-NEXT: movl %edi, %edx
; X32-NEXT: addl $12, %esp
; X32-NEXT: .cfi_def_cfa_offset 20
; X32-NEXT: popl %esi
; X32-NEXT: .cfi_def_cfa_offset 16
; X32-NEXT: popl %edi
; X32-NEXT: .cfi_def_cfa_offset 12
; X32-NEXT: popl %ebx
; X32-NEXT: .cfi_def_cfa_offset 8
; X32-NEXT: popl %ebp
; X32-NEXT: .cfi_def_cfa_offset 4
; X32-NEXT: retl
;
; X64-LABEL: PR38622:
@ -408,3 +384,59 @@ define { i64, i32 } @PR38622(i64) {
%6 = insertvalue { i64, i32 } %5, i32 %4, 1
ret { i64, i32 } %6
}
define { i64, i32 } @PR38622_signed(i64) nounwind {
; X32-LABEL: PR38622_signed:
; X32: # %bb.0:
; X32-NEXT: pushl %ebp
; X32-NEXT: pushl %ebx
; X32-NEXT: pushl %edi
; X32-NEXT: pushl %esi
; X32-NEXT: subl $12, %esp
; X32-NEXT: movl {{[0-9]+}}(%esp), %ebx
; X32-NEXT: movl {{[0-9]+}}(%esp), %ebp
; X32-NEXT: pushl $0
; X32-NEXT: pushl $-294967296 # imm = 0xEE6B2800
; X32-NEXT: pushl %ebp
; X32-NEXT: pushl %ebx
; X32-NEXT: calll __divdi3
; X32-NEXT: addl $16, %esp
; X32-NEXT: movl %eax, %esi
; X32-NEXT: movl %edx, %edi
; X32-NEXT: pushl $0
; X32-NEXT: pushl $-294967296 # imm = 0xEE6B2800
; X32-NEXT: pushl %ebp
; X32-NEXT: pushl %ebx
; X32-NEXT: calll __moddi3
; X32-NEXT: addl $16, %esp
; X32-NEXT: movl %eax, %ecx
; X32-NEXT: movl %esi, %eax
; X32-NEXT: movl %edi, %edx
; X32-NEXT: addl $12, %esp
; X32-NEXT: popl %esi
; X32-NEXT: popl %edi
; X32-NEXT: popl %ebx
; X32-NEXT: popl %ebp
; X32-NEXT: retl
;
; X64-LABEL: PR38622_signed:
; X64: # %bb.0:
; X64-NEXT: movabsq $1237940039285380275, %rcx # imm = 0x112E0BE826D694B3
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: imulq %rcx
; X64-NEXT: movq %rdx, %rcx
; X64-NEXT: shrq $63, %rcx
; X64-NEXT: sarq $28, %rdx
; X64-NEXT: leaq (%rdx,%rcx), %rax
; X64-NEXT: addl %ecx, %edx
; X64-NEXT: imull $-294967296, %edx, %ecx # imm = 0xEE6B2800
; X64-NEXT: subl %ecx, %edi
; X64-NEXT: movl %edi, %edx
; X64-NEXT: retq
%2 = sdiv i64 %0, 4000000000
%3 = srem i64 %0, 4000000000
%4 = trunc i64 %3 to i32
%5 = insertvalue { i64, i32 } undef, i64 %2, 0
%6 = insertvalue { i64, i32 } %5, i32 %4, 1
ret { i64, i32 } %6
}