blob: ac277980bd420f76a65bedc02dcc48f54c62376b [file] [log] [blame]
Chris Lattnera0aec0a2006-05-06 18:15:50 +00001; These tests should not contain a sign extend.
Reid Spencereb1d74e2007-04-16 17:36:08 +00002; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsh
Reid Spencer3b292642007-01-05 18:38:33 +00003; RUN: llvm-as < %s | llc -march=ppc32 | not grep extsb
Nate Begemand44d3d52006-02-17 21:22:08 +00004
Reid Spencere3ff5ad2007-01-26 08:25:06 +00005define i32 @test1(i32 %mode.0.i.0) {
Reid Spencer3b292642007-01-05 18:38:33 +00006 %tmp.79 = trunc i32 %mode.0.i.0 to i16
7 %tmp.80 = sext i16 %tmp.79 to i32
8 %tmp.81 = and i32 %tmp.80, 24
9 ret i32 %tmp.81
Nate Begemand44d3d52006-02-17 21:22:08 +000010}
Chris Lattnera0aec0a2006-05-06 18:15:50 +000011
Reid Spencere3ff5ad2007-01-26 08:25:06 +000012define i16 @test2(i16 sext %X, i16 sext %x) sext {
Reid Spencer3b292642007-01-05 18:38:33 +000013 %tmp = sext i16 %X to i32
14 %tmp1 = sext i16 %x to i32
15 %tmp2 = add i32 %tmp, %tmp1
Reid Spencer832254e2007-02-02 02:16:23 +000016 %tmp4 = ashr i32 %tmp2, 1
Reid Spencer90850432007-01-30 16:16:01 +000017 %tmp5 = trunc i32 %tmp4 to i16
18 %tmp45 = sext i16 %tmp5 to i32
Reid Spencer3b292642007-01-05 18:38:33 +000019 %retval = trunc i32 %tmp45 to i16
20 ret i16 %retval
Chris Lattnera0aec0a2006-05-06 18:15:50 +000021}
22
Reid Spencere3ff5ad2007-01-26 08:25:06 +000023define i16 @test3(i32 zext %X) sext {
Reid Spencer832254e2007-02-02 02:16:23 +000024 %tmp1 = lshr i32 %X, 16
Reid Spencer90850432007-01-30 16:16:01 +000025 %tmp2 = trunc i32 %tmp1 to i16
26 ret i16 %tmp2
Chris Lattner9b9a3cf2006-05-08 20:58:58 +000027}
28