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[x86] try to make test immune to better div optimization; NFCI 

llvm-svn: 345639
This commit is contained in:
Sanjay Patel 2018-10-30 20:42:03 +00:00
parent 4104c00658
commit 059ebc90ee
1 changed files with 14 additions and 20 deletions
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34
llvm/test/CodeGen/X86/pr32282.ll
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@ -9,11 +9,10 @@
@d = common global i64 zeroinitializer, align 8
@e = common global i64 zeroinitializer, align 8
define void @foo() {
define void @foo(i64 %x) nounwind {
; X86-LABEL: foo:
; X86: # %bb.0:
; X86-NEXT: pushl %eax
; X86-NEXT: .cfi_def_cfa_offset 8
; X86-NEXT: movl d, %eax
; X86-NEXT: notl %eax
; X86-NEXT: movl d+4, %ecx
@ -26,40 +25,35 @@ define void @foo() {
; X86-NEXT: addl $7, %eax
; X86-NEXT: adcl $0, %ecx
; X86-NEXT: pushl %ecx
; X86-NEXT: .cfi_adjust_cfa_offset 4
; X86-NEXT: pushl %eax
; X86-NEXT: .cfi_adjust_cfa_offset 4
; X86-NEXT: pushl $0
; X86-NEXT: .cfi_adjust_cfa_offset 4
; X86-NEXT: pushl $0
; X86-NEXT: .cfi_adjust_cfa_offset 4
; X86-NEXT: pushl {{[0-9]+}}(%esp)
; X86-NEXT: pushl {{[0-9]+}}(%esp)
; X86-NEXT: calll __divdi3
; X86-NEXT: addl $16, %esp
; X86-NEXT: .cfi_adjust_cfa_offset -16
; X86-NEXT: orl %eax, %edx
; X86-NEXT: setne {{[0-9]+}}(%esp)
; X86-NEXT: popl %eax
; X86-NEXT: .cfi_def_cfa_offset 4
; X86-NEXT: retl
;
; X64-LABEL: foo:
; X64: # %bb.0:
; X64-NEXT: movq {{.*}}(%rip), %rax
; X64-NEXT: movabsq $3013716102212485120, %rcx # imm = 0x29D2DED3DE400000
; X64-NEXT: andnq %rcx, %rax, %rcx
; X64-NEXT: movq %rdi, %rax
; X64-NEXT: movq {{.*}}(%rip), %rcx
; X64-NEXT: movabsq $3013716102212485120, %rdx # imm = 0x29D2DED3DE400000
; X64-NEXT: andnq %rdx, %rcx, %rcx
; X64-NEXT: shrq $21, %rcx
; X64-NEXT: addq $7, %rcx
; X64-NEXT: movabsq $4393751543808, %rax # imm = 0x3FF00000000
; X64-NEXT: testq %rax, %rcx
; X64-NEXT: movq %rdi, %rdx
; X64-NEXT: orq %rcx, %rdx
; X64-NEXT: shrq $32, %rdx
; X64-NEXT: je .LBB0_1
; X64-NEXT: # %bb.2:
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: xorl %edx, %edx
; X64-NEXT: divq %rcx
; X64-NEXT: cqto
; X64-NEXT: idivq %rcx
; X64-NEXT: jmp .LBB0_3
; X64-NEXT: .LBB0_1:
; X64-NEXT: xorl %eax, %eax
; X64-NEXT: xorl %edx, %edx
; X64-NEXT: # kill: def $eax killed $eax killed $rax
; X64-NEXT: divl %ecx
; X64-NEXT: # kill: def $eax killed $eax def $rax
; X64-NEXT: .LBB0_3:
@ -86,7 +80,7 @@ define void @foo() {
%18 = ashr i64 %4, %17
%19 = and i64 %18, 9223372036854775806
%20 = add nsw i64 7, %19
%21 = sdiv i64 0, %20
%21 = sdiv i64 %x, %20
%22 = icmp ne i64 %21, 0
%23 = zext i1 %22 to i8
store i8 %23, i8* %1, align 1