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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s -mtriple=x86_64 | FileCheck %s
define zeroext i32 @trunc_nuw_nsw_urem(i64 %x) nounwind {
; CHECK-LABEL: trunc_nuw_nsw_urem:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movq %rdi, %rax
; CHECK-NEXT: movl $3518437209, %ecx # imm = 0xD1B71759
; CHECK-NEXT: imulq %rdi, %rcx
; CHECK-NEXT: shrq $45, %rcx
; CHECK-NEXT: imull $10000, %ecx, %ecx # imm = 0x2710
; CHECK-NEXT: subl %ecx, %eax
; CHECK-NEXT: # kill: def $eax killed $eax killed $rax
; CHECK-NEXT: retq
entry:
%trunc = trunc nuw nsw i64 %x to i32
%rem = urem i32 %trunc, 10000
ret i32 %rem
}
define i64 @zext_nneg_udiv_trunc_nuw(i64 %x) nounwind {
; CHECK-LABEL: zext_nneg_udiv_trunc_nuw:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: imull $52429, %edi, %eax # imm = 0xCCCD
; CHECK-NEXT: shrl $23, %eax
; CHECK-NEXT: retq
entry:
%trunc = trunc nuw i64 %x to i16
%div = udiv i16 %trunc, 160
%ext = zext nneg i16 %div to i64
ret i64 %ext
}
define i64 @sext_udiv_trunc_nuw(i64 %x) nounwind {
; CHECK-LABEL: sext_udiv_trunc_nuw:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: imull $52429, %edi, %eax # imm = 0xCCCD
; CHECK-NEXT: shrl $23, %eax
; CHECK-NEXT: retq
entry:
%trunc = trunc nuw i64 %x to i16
%div = udiv i16 %trunc, 160
%ext = sext i16 %div to i64
ret i64 %ext
}
define ptr @gep_nusw_zext_nneg_add_trunc_nuw_nsw(ptr %p, i64 %x) nounwind {
; CHECK-LABEL: gep_nusw_zext_nneg_add_trunc_nuw_nsw:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: leaq 20(%rdi,%rsi,4), %rax
; CHECK-NEXT: retq
entry:
%trunc = trunc nuw nsw i64 %x to i32
%add = add nuw nsw i32 %trunc, 5
%offset = zext nneg i32 %add to i64
%gep = getelementptr nusw float, ptr %p, i64 %offset
ret ptr %gep
}
; Make sure nsw flag is dropped after we simplify the operand of TRUNCATE.
define i32 @simplify_demanded_bits_drop_flag(i1 zeroext %x, i1 zeroext %y) nounwind {
; CHECK-LABEL: simplify_demanded_bits_drop_flag:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: negl %edi
; CHECK-NEXT: shll $2, %esi
; CHECK-NEXT: xorl %edi, %esi
; CHECK-NEXT: movslq %esi, %rax
; CHECK-NEXT: imulq $-1634202141, %rax, %rax # imm = 0x9E980DE3
; CHECK-NEXT: movq %rax, %rcx
; CHECK-NEXT: shrq $63, %rcx
; CHECK-NEXT: sarq $44, %rax
; CHECK-NEXT: addl %ecx, %eax
; CHECK-NEXT: # kill: def $eax killed $eax killed $rax
; CHECK-NEXT: retq
entry:
%sel = select i1 %y, i64 4, i64 0
%conv0 = sext i1 %x to i64
%xor = xor i64 %sel, %conv0
%conv1 = trunc nsw i64 %xor to i32
%div = sdiv i32 %conv1, -10765
ret i32 %div
}
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