| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep ret | count 6 |
| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep call.*bswap |
| |
| define i1 @test1(i16 %tmp2) { |
| %tmp10 = call i16 @llvm.bswap.i16( i16 %tmp2 ) ; <i16> [#uses=1] |
| %tmp = icmp eq i16 %tmp10, 1 ; <i1> [#uses=1] |
| ret i1 %tmp |
| } |
| |
| define i1 @test2(i32 %tmp) { |
| %tmp34 = tail call i32 @llvm.bswap.i32( i32 %tmp ) ; <i32> [#uses=1] |
| %tmp.upgrd.1 = icmp eq i32 %tmp34, 1 ; <i1> [#uses=1] |
| ret i1 %tmp.upgrd.1 |
| } |
| |
| declare i32 @llvm.bswap.i32(i32) |
| |
| define i1 @test3(i64 %tmp) { |
| %tmp34 = tail call i64 @llvm.bswap.i64( i64 %tmp ) ; <i64> [#uses=1] |
| %tmp.upgrd.2 = icmp eq i64 %tmp34, 1 ; <i1> [#uses=1] |
| ret i1 %tmp.upgrd.2 |
| } |
| |
| declare i64 @llvm.bswap.i64(i64) |
| |
| declare i16 @llvm.bswap.i16(i16) |
| |
| ; rdar://5992453 |
| ; A & 255 |
| define i32 @test4(i32 %a) nounwind { |
| entry: |
| %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a ) |
| %tmp4 = lshr i32 %tmp2, 24 |
| ret i32 %tmp4 |
| } |
| |
| ; A |
| define i32 @test5(i32 %a) nounwind { |
| entry: |
| %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a ) |
| %tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 ) |
| ret i32 %tmp4 |
| } |
| |
| ; a >> 24 |
| define i32 @test6(i32 %a) nounwind { |
| entry: |
| %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a ) |
| %tmp4 = and i32 %tmp2, 255 |
| ret i32 %tmp4 |
| } |
| |