third_party/llvm-7.0/llvm/test/CodeGen/Mips/llcarry.ll

; RUN: llc  -march=mipsel -mattr=mips16 -relocation-model=pic -O3 < %s | FileCheck %s -check-prefix=16

@i = global i64 4294967295, align 8
@j = global i64 15, align 8
@ii = global i64 4294967295, align 8
@k = common global i64 0, align 8
@l = common global i64 0, align 8
@m = common global i64 0, align 8

define void @test1() nounwind {
entry:
  %0 = load i64, i64* @i, align 8
  %1 = load i64, i64* @j, align 8
  %add = add nsw i64 %1, %0
  store i64 %add, i64* @k, align 8
; 16:	addu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
; 16:	addu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
; 16:	sltu	${{[0-9]+}}, ${{[0-9]+}}
; 16:	move	${{[0-9]+}}, $24
; 16:	addu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
  ret void
}

define void @test2() nounwind {
entry:
  %0 = load i64, i64* @i, align 8
  %1 = load i64, i64* @j, align 8
  %sub = sub nsw i64 %0, %1
; 16:	subu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
; 16:	sltu	${{[0-9]+}}, ${{[0-9]+}}
; 16:	move	${{[0-9]+}}, $24
; 16:	subu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
; 16:	subu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
  store i64 %sub, i64* @l, align 8
  ret void
}

define void @test3() nounwind {
entry:
  %0 = load i64, i64* @ii, align 8
  %add = add nsw i64 %0, 15
; 16:	addiu	${{[0-9]+}}, 15
; 16:	sltu	${{[0-9]+}}, ${{[0-9]+}}
; 16:	move	${{[0-9]+}}, $24
; 16:	addu	${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
  store i64 %add, i64* @m, align 8
  ret void
}