| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep { sub } | count 1 | |
| ; PR2047 | |
| define i32 @l(i32 %a, i32 %b, i32 %c, i32 %d) { | |
| entry: | |
| %b.neg = sub i32 0, %b ; <i32> [#uses=1] | |
| %c.neg = sub i32 0, %c ; <i32> [#uses=1] | |
| %sub4 = add i32 %c.neg, %b.neg ; <i32> [#uses=1] | |
| %sub6 = add i32 %sub4, %d ; <i32> [#uses=1] | |
| ret i32 %sub6 | |
| } | |