forked from OSchip/llvm-project
81 lines
2.4 KiB
LLVM
81 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=i686-unknown-linux-gnu < %s | FileCheck %s --check-prefixes=CHECK,X86
|
|
; RUN: llc -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s --check-prefixes=CHECK,X64
|
|
|
|
; On X86, division in expensive. BuildRemEqFold should therefore run even
|
|
; when optimizing for size. Only optimizing for minimum size retains a plain div.
|
|
|
|
define i32 @test_minsize(i32 %X) optsize minsize nounwind readnone {
|
|
; X86-LABEL: test_minsize:
|
|
; X86: # %bb.0:
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
; X86-NEXT: pushl $5
|
|
; X86-NEXT: popl %ecx
|
|
; X86-NEXT: xorl %edx, %edx
|
|
; X86-NEXT: divl %ecx
|
|
; X86-NEXT: testl %edx, %edx
|
|
; X86-NEXT: je .LBB0_1
|
|
; X86-NEXT: # %bb.2:
|
|
; X86-NEXT: pushl $-10
|
|
; X86-NEXT: popl %eax
|
|
; X86-NEXT: retl
|
|
; X86-NEXT: .LBB0_1:
|
|
; X86-NEXT: pushl $42
|
|
; X86-NEXT: popl %eax
|
|
; X86-NEXT: retl
|
|
;
|
|
; X64-LABEL: test_minsize:
|
|
; X64: # %bb.0:
|
|
; X64-NEXT: movl %edi, %eax
|
|
; X64-NEXT: pushq $5
|
|
; X64-NEXT: popq %rcx
|
|
; X64-NEXT: xorl %edx, %edx
|
|
; X64-NEXT: divl %ecx
|
|
; X64-NEXT: testl %edx, %edx
|
|
; X64-NEXT: pushq $42
|
|
; X64-NEXT: popq %rcx
|
|
; X64-NEXT: pushq $-10
|
|
; X64-NEXT: popq %rax
|
|
; X64-NEXT: cmovel %ecx, %eax
|
|
; X64-NEXT: retq
|
|
%rem = urem i32 %X, 5
|
|
%cmp = icmp eq i32 %rem, 0
|
|
%ret = select i1 %cmp, i32 42, i32 -10
|
|
ret i32 %ret
|
|
}
|
|
|
|
define i32 @test_optsize(i32 %X) optsize nounwind readnone {
|
|
; X86-LABEL: test_optsize:
|
|
; X86: # %bb.0:
|
|
; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
; X86-NEXT: movl $-858993459, %edx # imm = 0xCCCCCCCD
|
|
; X86-NEXT: movl %ecx, %eax
|
|
; X86-NEXT: mull %edx
|
|
; X86-NEXT: shrl $2, %edx
|
|
; X86-NEXT: leal (%edx,%edx,4), %eax
|
|
; X86-NEXT: cmpl %eax, %ecx
|
|
; X86-NEXT: movl $42, %eax
|
|
; X86-NEXT: je .LBB1_2
|
|
; X86-NEXT: # %bb.1:
|
|
; X86-NEXT: movl $-10, %eax
|
|
; X86-NEXT: .LBB1_2:
|
|
; X86-NEXT: retl
|
|
;
|
|
; X64-LABEL: test_optsize:
|
|
; X64: # %bb.0:
|
|
; X64-NEXT: movl %edi, %eax
|
|
; X64-NEXT: movl $3435973837, %ecx # imm = 0xCCCCCCCD
|
|
; X64-NEXT: imulq %rax, %rcx
|
|
; X64-NEXT: shrq $34, %rcx
|
|
; X64-NEXT: leal (%rcx,%rcx,4), %eax
|
|
; X64-NEXT: cmpl %eax, %edi
|
|
; X64-NEXT: movl $42, %ecx
|
|
; X64-NEXT: movl $-10, %eax
|
|
; X64-NEXT: cmovel %ecx, %eax
|
|
; X64-NEXT: retq
|
|
%rem = urem i32 %X, 5
|
|
%cmp = icmp eq i32 %rem, 0
|
|
%ret = select i1 %cmp, i32 42, i32 -10
|
|
ret i32 %ret
|
|
}
|