llvm-project/llvm/test/CodeGen/Mips/llcarry.ll

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; RUN: llc -march=mipsel -mcpu=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* @i, align 8
%1 = load 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: sltu ${{[0-9]+}}, ${{[0-9]+}}
; 16: move ${{[0-9]+}}, $t8
; 16: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
; 16: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
ret void
}
define void @test2() nounwind {
entry:
%0 = load i64* @i, align 8
%1 = load 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]+}}, $t8
; 16: addu ${{[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* @ii, align 8
%add = add nsw i64 %0, 15
; 16: addiu ${{[0-9]+}}, 15
; 16: sltu ${{[0-9]+}}, ${{[0-9]+}}
; 16: move ${{[0-9]+}}, $t8
; 16: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
; 16: addu ${{[0-9]+}}, ${{[0-9]+}}, ${{[0-9]+}}
store i64 %add, i64* @m, align 8
ret void
}