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
6 declare i31 @llvm.ctpop.i31(i31 %val)
7 declare i32 @llvm.cttz.i32(i32 %val)
8 declare i33 @llvm.ctlz.i33(i33 %val)
10 define i32 @test(i32 %A) {
11 %c1 = call i31 @llvm.ctpop.i31(i31 12415124)
12 %c2 = call i32 @llvm.cttz.i32(i32 87359874)
13 %c3 = call i33 @llvm.ctlz.i33(i33 87359874)
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