| ; Tests to make sure bit counts of constants are folded |
| ; RUN: opt < %s -instcombine -S | grep {ret i32 19} |
| ; RUN: opt < %s -instcombine -S | \ |
| ; RUN: grep -v declare | not grep llvm.ct |
| |
| declare i31 @llvm.ctpop.i31(i31 %val) |
| declare i32 @llvm.cttz.i32(i32 %val) |
| declare i33 @llvm.ctlz.i33(i33 %val) |
| |
| define i32 @test(i32 %A) { |
| %c1 = call i31 @llvm.ctpop.i31(i31 12415124) |
| %c2 = call i32 @llvm.cttz.i32(i32 87359874) |
| %c3 = call i33 @llvm.ctlz.i33(i33 87359874) |
| %t1 = zext i31 %c1 to i32 |
| %t3 = trunc i33 %c3 to i32 |
| %r1 = add i32 %t1, %c2 |
| %r2 = add i32 %r1, %t3 |
| ret i32 %r2 |
| } |
