blob: c6d234ea665fbeed8115c459063450d6d7d33b00 [file] [log] [blame]
Chris Lattnera0aec0a2006-05-06 18:15:50 +00001; These tests should not contain a sign extend.
Dan Gohmanfce288f2009-09-09 00:09:15 +00002; RUN: llc < %s -march=ppc32 | not grep extsh
3; RUN: llc < %s -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 Spencer9445e9a2007-07-19 23:13:04 +000012define i16 @test2(i16 signext %X, i16 signext %x) signext {
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 Spencer9445e9a2007-07-19 23:13:04 +000023define i16 @test3(i32 zeroext %X) signext {
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