| Reid Spencer | a3bc850 | 2007-04-02 01:45:31 +0000 | [diff] [blame] | 1 | ; Tests to make sure bit counts of constants are folded |
| Reid Spencer | 91948d4 | 2007-04-14 20:13:02 +0000 | [diff] [blame^] | 2 | ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {ret i32 19} |
| 3 | ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \ |
| 4 | ; RUN: grep -v declare | not grep llvm.ct |
| Reid Spencer | a3bc850 | 2007-04-02 01:45:31 +0000 | [diff] [blame] | 5 | |
| 6 | declare i32 @llvm.ctpop.i31(i31 %val) |
| 7 | declare i32 @llvm.cttz.i32(i32 %val) |
| 8 | declare i32 @llvm.ctlz.i33(i33 %val) |
| 9 | |
| Reid Spencer | e51961b | 2007-04-02 03:24:47 +0000 | [diff] [blame] | 10 | define i32 @test(i32 %A) { |
| 11 | %c1 = call i32 @llvm.ctpop.i31(i31 12415124) |
| 12 | %c2 = call i32 @llvm.cttz.i32(i32 87359874) |
| 13 | %c3 = call i32 @llvm.ctlz.i33(i33 87359874) |
| Reid Spencer | a3bc850 | 2007-04-02 01:45:31 +0000 | [diff] [blame] | 14 | %r1 = add i32 %c1, %c2 |
| 15 | %r2 = add i32 %r1, %c3 |
| 16 | ret i32 %r2 |
| 17 | } |