1 ; RUN: opt < %s -instcombine -S | not grep call.*bswap
3 define i1 @test1(i16 %tmp2) {
4 %tmp10 = call i16 @llvm.bswap.i16( i16 %tmp2 )
5 %tmp = icmp eq i16 %tmp10, 1
9 define i1 @test2(i32 %tmp) {
10 %tmp34 = tail call i32 @llvm.bswap.i32( i32 %tmp )
11 %tmp.upgrd.1 = icmp eq i32 %tmp34, 1
15 declare i32 @llvm.bswap.i32(i32)
17 define i1 @test3(i64 %tmp) {
18 %tmp34 = tail call i64 @llvm.bswap.i64( i64 %tmp )
19 %tmp.upgrd.2 = icmp eq i64 %tmp34, 1
23 declare i64 @llvm.bswap.i64(i64)
25 declare i16 @llvm.bswap.i16(i16)
29 define i32 @test4(i32 %a) nounwind {
31 %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
32 %tmp4 = lshr i32 %tmp2, 24
37 define i32 @test5(i32 %a) nounwind {
39 %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
40 %tmp4 = tail call i32 @llvm.bswap.i32( i32 %tmp2 )
45 define i32 @test6(i32 %a) nounwind {
47 %tmp2 = tail call i32 @llvm.bswap.i32( i32 %a )
48 %tmp4 = and i32 %tmp2, 255
53 declare i64 @llvm.bswap.i64(i64)
54 declare i32 @llvm.bswap.i32(i32)
55 declare i16 @llvm.bswap.i16(i16)
57 define i16 @test7(i32 %A) {
58 %B = tail call i32 @llvm.bswap.i32(i32 %A) nounwind
59 %C = trunc i32 %B to i16
60 %D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
64 define i16 @test8(i64 %A) {
65 %B = tail call i64 @llvm.bswap.i64(i64 %A) nounwind
66 %C = trunc i64 %B to i16
67 %D = tail call i16 @llvm.bswap.i16(i16 %C) nounwind
71 ; Misc: Fold bswap(undef) to undef.
73 %a = call i64 @llvm.bswap.i64(i64 undef)