1 ; Tests to make sure bit counts of constants are folded 2 ; RUN: opt < %s -instcombine -S | grep "ret i32 19" 3 ; RUN: opt < %s -instcombine -S | \ 4 ; RUN: grep -v declare | not grep llvm.ct 5 6 declare i31 @llvm.ctpop.i31(i31 %val) 7 declare i32 @llvm.cttz.i32(i32 %val, i1) 8 declare i33 @llvm.ctlz.i33(i33 %val, i1) 9 10 define i32 @test(i32 %A) { 11 %c1 = call i31 @llvm.ctpop.i31(i31 12415124) 12 %c2 = call i32 @llvm.cttz.i32(i32 87359874, i1 true) 13 %c3 = call i33 @llvm.ctlz.i33(i33 87359874, i1 true) 14 %t1 = zext i31 %c1 to i32 15 %t3 = trunc i33 %c3 to i32 16 %r1 = add i32 %t1, %c2 17 %r2 = add i32 %r1, %t3 18 ret i32 %r2 19 } 20
