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annotate test/CodeGen/ARM/carry.ll @ 0:95c75e76d11b

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 54457678186b
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 ; RUN: llc < %s -march=arm | FileCheck %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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3 define i64 @f1(i64 %a, i64 %b) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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4 ; CHECK-LABEL: f1:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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5 ; CHECK: subs r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
6 ; CHECK: sbc r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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8 %tmp = sub i64 %a, %b
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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9 ret i64 %tmp
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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10 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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11
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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12 define i64 @f2(i64 %a, i64 %b) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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13 ; CHECK-LABEL: f2:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 ; CHECK: adc r
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 ; CHECK: subs r
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 ; CHECK: sbc r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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18 %tmp1 = shl i64 %a, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 %tmp2 = sub i64 %tmp1, %b
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
20 ret i64 %tmp2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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21 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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22
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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23 ; add with live carry
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
24 define i64 @f3(i32 %al, i32 %bl) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
25 ; CHECK-LABEL: f3:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
26 ; CHECK: adds r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
27 ; CHECK: adc r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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29 ; unsigned wide add
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
30 %aw = zext i32 %al to i64
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
31 %bw = zext i32 %bl to i64
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
32 %cw = add i64 %aw, %bw
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
33 ; ch == carry bit
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
34 %ch = lshr i64 %cw, 32
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
35 %dw = add i64 %ch, %bw
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36 ret i64 %dw
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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37 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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38
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 ; rdar://10073745
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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40 define i64 @f4(i64 %x) nounwind readnone {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 ; CHECK-LABEL: f4:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
43 ; CHECK: rsbs r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 ; CHECK: rsc r
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 %0 = sub nsw i64 0, %x
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
46 ret i64 %0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
48
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49 ; rdar://12559385
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
50 define i64 @f5(i32 %vi) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
51 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
52 ; CHECK-LABEL: f5:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
53 ; CHECK: movw [[REG:r[0-9]+]], #36102
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
54 ; CHECK: sbc r{{[0-9]+}}, r{{[0-9]+}}, [[REG]]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
55 %v0 = zext i32 %vi to i64
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
56 %v1 = xor i64 %v0, -155057456198619
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
57 %v4 = add i64 %v1, 155057456198619
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
58 %v5 = add i64 %v4, %v1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
59 ret i64 %v5
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
60 }