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annotate test/CodeGen/X86/x86-shrink-wrap-unwind.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents
children 1172e4bd9c6f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
100
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
1 ; RUN: llc %s -o - | FileCheck %s --check-prefix=CHECK
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
2 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
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3 ; Note: This test cannot be merged with the shrink-wrapping tests
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
4 ; because the booleans set on the command line take precedence on
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
5 ; the target logic that disable shrink-wrapping.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
6 target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
7 target triple = "x86_64-apple-macosx"
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
8
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
9
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
10 ; This test checks that we do not use shrink-wrapping when
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
11 ; the function does not have any frame pointer and may unwind.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
12 ; This is a workaround for a limitation in the emission of
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
13 ; the CFI directives, that are not correct in such case.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
14 ; PR25614
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
15 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
16 ; No shrink-wrapping should occur here, until the CFI information are fixed.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
17 ; CHECK-LABEL: framelessUnwind:
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
18 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
19 ; Prologue code.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
20 ; (What we push does not matter. It should be some random sratch register.)
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
21 ; CHECK: pushq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
22 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
23 ; Compare the arguments and jump to exit.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
24 ; After the prologue is set.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
25 ; CHECK: movl %edi, [[ARG0CPY:%e[a-z]+]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
26 ; CHECK-NEXT: cmpl %esi, [[ARG0CPY]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
27 ; CHECK-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
28 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
29 ; Store %a in the alloca.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
30 ; CHECK: movl [[ARG0CPY]], 4(%rsp)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
31 ; Set the alloca address in the second argument.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
32 ; CHECK-NEXT: leaq 4(%rsp), %rsi
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
33 ; Set the first argument to zero.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
34 ; CHECK-NEXT: xorl %edi, %edi
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
35 ; CHECK-NEXT: callq _doSomething
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
36 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
37 ; CHECK: [[EXIT_LABEL]]:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
38 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
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39 ; Without shrink-wrapping, epilogue is in the exit block.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
40 ; Epilogue code. (What we pop does not matter.)
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
41 ; CHECK-NEXT: popq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
42 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
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43 ; CHECK-NEXT: retq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
44 define i32 @framelessUnwind(i32 %a, i32 %b) #0 {
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
45 %tmp = alloca i32, align 4
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
46 %tmp2 = icmp slt i32 %a, %b
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
47 br i1 %tmp2, label %true, label %false
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
48
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
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49 true:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
50 store i32 %a, i32* %tmp, align 4
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
51 %tmp4 = call i32 @doSomething(i32 0, i32* %tmp)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
52 br label %false
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
53
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
54 false:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
55 %tmp.0 = phi i32 [ %tmp4, %true ], [ %a, %0 ]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
56 ret i32 %tmp.0
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
57 }
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
58
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
59 declare i32 @doSomething(i32, i32*)
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
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60
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
61 attributes #0 = { "no-frame-pointer-elim"="false" }
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
62
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
63 ; Shrink-wrapping should occur here. We have a frame pointer.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
64 ; CHECK-LABEL: frameUnwind:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
65 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
66 ; Compare the arguments and jump to exit.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
67 ; No prologue needed.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
68 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
69 ; Compare the arguments and jump to exit.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
70 ; After the prologue is set.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
71 ; CHECK: movl %edi, [[ARG0CPY:%e[a-z]+]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
72 ; CHECK-NEXT: cmpl %esi, [[ARG0CPY]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
73 ; CHECK-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
74 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
75 ; Prologue code.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
76 ; CHECK: pushq %rbp
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
77 ; CHECK: movq %rsp, %rbp
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
78 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
79 ; Store %a in the alloca.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
80 ; CHECK: movl [[ARG0CPY]], -4(%rbp)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
81 ; Set the alloca address in the second argument.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
82 ; CHECK-NEXT: leaq -4(%rbp), %rsi
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
83 ; Set the first argument to zero.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
84 ; CHECK-NEXT: xorl %edi, %edi
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
85 ; CHECK-NEXT: callq _doSomething
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
86 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
87 ; Epilogue code. (What we pop does not matter.)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
88 ; CHECK: popq %rbp
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
89 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
90 ; CHECK: [[EXIT_LABEL]]:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
91 ; CHECK-NEXT: retq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
92 define i32 @frameUnwind(i32 %a, i32 %b) #1 {
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
93 %tmp = alloca i32, align 4
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
94 %tmp2 = icmp slt i32 %a, %b
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
95 br i1 %tmp2, label %true, label %false
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
96
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
97 true:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
98 store i32 %a, i32* %tmp, align 4
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
99 %tmp4 = call i32 @doSomething(i32 0, i32* %tmp)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
100 br label %false
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
101
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
102 false:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
103 %tmp.0 = phi i32 [ %tmp4, %true ], [ %a, %0 ]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
104 ret i32 %tmp.0
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
105 }
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
106
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
107 attributes #1 = { "no-frame-pointer-elim"="true" }
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
108
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
109 ; Shrink-wrapping should occur here. We do not have to unwind.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
110 ; CHECK-LABEL: framelessnoUnwind:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
111 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
112 ; Compare the arguments and jump to exit.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
113 ; No prologue needed.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
114 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
115 ; Compare the arguments and jump to exit.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
116 ; After the prologue is set.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
117 ; CHECK: movl %edi, [[ARG0CPY:%e[a-z]+]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
118 ; CHECK-NEXT: cmpl %esi, [[ARG0CPY]]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
119 ; CHECK-NEXT: jge [[EXIT_LABEL:LBB[0-9_]+]]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
120 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
121 ; Prologue code.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
122 ; (What we push does not matter. It should be some random sratch register.)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
123 ; CHECK: pushq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
124 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
125 ; Store %a in the alloca.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
126 ; CHECK: movl [[ARG0CPY]], 4(%rsp)
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
127 ; Set the alloca address in the second argument.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
128 ; CHECK-NEXT: leaq 4(%rsp), %rsi
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
129 ; Set the first argument to zero.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
130 ; CHECK-NEXT: xorl %edi, %edi
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 ; CHECK-NEXT: callq _doSomething
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
132 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
133 ; Epilogue code.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
134 ; CHECK-NEXT: addq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
136 ; CHECK: [[EXIT_LABEL]]:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
137 ; CHECK-NEXT: retq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138 define i32 @framelessnoUnwind(i32 %a, i32 %b) #2 {
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
139 %tmp = alloca i32, align 4
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
140 %tmp2 = icmp slt i32 %a, %b
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
141 br i1 %tmp2, label %true, label %false
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
142
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
143 true:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 store i32 %a, i32* %tmp, align 4
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
145 %tmp4 = call i32 @doSomething(i32 0, i32* %tmp)
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 br label %false
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
147
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 false:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
149 %tmp.0 = phi i32 [ %tmp4, %true ], [ %a, %0 ]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 ret i32 %tmp.0
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 }
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
152
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
153 attributes #2 = { "no-frame-pointer-elim"="false" nounwind }
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
154
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
155
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
156 ; Check that we generate correct code for segmented stack.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
157 ; We used to emit the code at the entry point of the function
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 ; instead of just before the prologue.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 ; For now, shrink-wrapping is disabled on segmented stack functions: PR26107.
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
161 ; CHECK-LABEL: segmentedStack:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 ; CHECK: cmpq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
163 ; CHECK-NEXT: ja [[ENTRY_LABEL:LBB[0-9_]+]]
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 ; CHECK: callq ___morestack
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 ; CHECK-NEXT: retq
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
168 ; CHECK: [[ENTRY_LABEL]]:
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 ; Prologue
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 ; CHECK: push
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
171 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 ; In PR26107, we use to drop these two basic blocks, because
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
173 ; the segmentedStack entry block was jumping directly to
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 ; the place where the prologue is actually needed, which is
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
175 ; the call to memcmp.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
176 ; Then, those two basic blocks did not have any predecessors
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
177 ; anymore and were removed.
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
179 ; Check if vk1 is null
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
180 ; CHECK: testq %rdi, %rdi
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
181 ; CHECK-NEXT: je [[STRINGS_EQUAL:LBB[0-9_]+]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
182 ;
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 ; Check if vk2 is null
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 ; CHECK: testq %rsi, %rsi
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
185 ; CHECK-NEXT: je [[STRINGS_EQUAL]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 ;
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
187 ; CHECK: [[STRINGS_EQUAL]]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
188 ; CHECK-NEXT: popq
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 define zeroext i1 @segmentedStack(i8* readonly %vk1, i8* readonly %vk2, i64 %key_size) #5 {
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 entry:
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
191 %cmp.i = icmp eq i8* %vk1, null
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 %cmp1.i = icmp eq i8* %vk2, null
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
193 %brmerge.i = or i1 %cmp.i, %cmp1.i
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 %cmp1.mux.i = and i1 %cmp.i, %cmp1.i
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 br i1 %brmerge.i, label %__go_ptr_strings_equal.exit, label %if.end4.i
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
196
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
197 if.end4.i: ; preds = %entry
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Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
198 %tmp = getelementptr inbounds i8, i8* %vk1, i64 8
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
199 %tmp1 = bitcast i8* %tmp to i64*
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
200 %tmp2 = load i64, i64* %tmp1, align 8
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
201 %tmp3 = getelementptr inbounds i8, i8* %vk2, i64 8
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
202 %tmp4 = bitcast i8* %tmp3 to i64*
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
203 %tmp5 = load i64, i64* %tmp4, align 8
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
204 %cmp.i.i = icmp eq i64 %tmp2, %tmp5
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
205 br i1 %cmp.i.i, label %land.rhs.i.i, label %__go_ptr_strings_equal.exit
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
206
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 land.rhs.i.i: ; preds = %if.end4.i
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
208 %tmp6 = bitcast i8* %vk2 to i8**
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 %tmp7 = load i8*, i8** %tmp6, align 8
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 %tmp8 = bitcast i8* %vk1 to i8**
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
211 %tmp9 = load i8*, i8** %tmp8, align 8
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
212 %call.i.i = tail call i32 @memcmp(i8* %tmp9, i8* %tmp7, i64 %tmp2) #5
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
213 %cmp4.i.i = icmp eq i32 %call.i.i, 0
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
214 br label %__go_ptr_strings_equal.exit
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
215
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
216 __go_ptr_strings_equal.exit: ; preds = %land.rhs.i.i, %if.end4.i, %entry
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
217 %retval.0.i = phi i1 [ %cmp1.mux.i, %entry ], [ false, %if.end4.i ], [ %cmp4.i.i, %land.rhs.i.i ]
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
218 ret i1 %retval.0.i
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
219 }
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
220
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
221 ; Function Attrs: nounwind readonly
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
222 declare i32 @memcmp(i8* nocapture, i8* nocapture, i64) #5
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
223
7d135dc70f03 LLVM 3.9
Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
parents:
diff changeset
224 attributes #5 = { nounwind readonly ssp uwtable "split-stack" }