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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / 487119a08c379ac4debf1f03600c39685d4a8e3a / . / test / CodeGen / ARM / rev.ll
blob: 687bf8834c9f60a2efb0eb953ddb52f368ee59fd [file] [log] [blame]
Jim Grosbach487119a2010-10-22 21:55:03 +0000[diff] [blame^]1; RUN: llc < %s -march=arm -mattr=+v6 | FileCheck %s
Evan Cheng02b985c2007-01-19 09:20:23 +0000[diff] [blame]2
Tanya Lattner6263f942008-02-17 20:02:20 +0000[diff] [blame]3define i32 @test1(i32 %X) {
Jim Grosbach487119a2010-10-22 21:55:03 +0000[diff] [blame^]4; CHECK: test1
5; CHECK: rev16 r0, r0
6 %tmp1 = lshr i32 %X, 8
7 %X15 = bitcast i32 %X to i32
8 %tmp4 = shl i32 %X15, 8
9 %tmp2 = and i32 %tmp1, 16711680
10 %tmp5 = and i32 %tmp4, -16777216
11 %tmp9 = and i32 %tmp1, 255
12 %tmp13 = and i32 %tmp4, 65280
13 %tmp6 = or i32 %tmp5, %tmp2
14 %tmp10 = or i32 %tmp6, %tmp13
15 %tmp14 = or i32 %tmp10, %tmp9
Tanya Lattner6263f942008-02-17 20:02:20 +0000[diff] [blame]16 ret i32 %tmp14
Evan Cheng02b985c2007-01-19 09:20:23 +0000[diff] [blame]17}
18
Tanya Lattner6263f942008-02-17 20:02:20 +0000[diff] [blame]19define i32 @test2(i32 %X) {
Jim Grosbach487119a2010-10-22 21:55:03 +0000[diff] [blame^]20; CHECK: test2
21; CHECK: revsh r0, r0
22 %tmp1 = lshr i32 %X, 8
23 %tmp1.upgrd.1 = trunc i32 %tmp1 to i16
24 %tmp3 = trunc i32 %X to i16
25 %tmp2 = and i16 %tmp1.upgrd.1, 255
26 %tmp4 = shl i16 %tmp3, 8
27 %tmp5 = or i16 %tmp2, %tmp4
28 %tmp5.upgrd.2 = sext i16 %tmp5 to i32
Tanya Lattner6263f942008-02-17 20:02:20 +0000[diff] [blame]29 ret i32 %tmp5.upgrd.2
Evan Cheng02b985c2007-01-19 09:20:23 +0000[diff] [blame]30}