branch-relaxation-with-hazard.ll
1.71 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
; RUN: llc -O0 -mtriple=mips-img-linux-gnu -mcpu=mips32r6 -relocation-model=pic < %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-PIC
; RUN: llc -O0 -mtriple=mips-img-linux-gnu -mcpu=mips32r6 -relocation-model=static < %s -o - | FileCheck %s --check-prefixes=CHECK-STATIC
declare i32 @boo(...)
declare i32 @foo(...)
define i32 @main(i32 signext %argc, i8** %argv) {
; CHECK: main:
; CHECK: # %bb.1:
; CHECK-PIC: addiu
; CHECK-PIC: sw
; CHECK-PIC: lui
; CHECK-PIC: addiu
; CHECK-PIC: balc
; CHECK-PIC: addu
; CHECK-PIC: lw
; CHECK-PIC: addiu
; CHECK-PIC: jrc
; CHECK-PIC: bc
; CHECK-PIC: bnezc
; CHECK-PIC: nop
; CHECK-PIC: bc
; CHECK-STATIC: bc
; CHECK-STATIC: j
; CHECK-STATIC: bnezc
; CHECK-STATIC: nop
; CHECK-STATIC: j
entry:
%retval = alloca i32, align 4
%argc.addr = alloca i32, align 4
%argv.addr = alloca i8**, align 4
store i32 0, i32* %retval, align 4
store i32 %argc, i32* %argc.addr, align 4
store i8** %argv, i8*** %argv.addr, align 4
%0 = load i32, i32* %argc.addr, align 4
%cmp = icmp sgt i32 %0, 1
br i1 %cmp, label %if.then, label %if.end4
if.then:
call void asm sideeffect ".space 10", "~{$1}"()
%1 = load i32, i32* %argc.addr, align 4
%cmp1 = icmp sgt i32 %1, 3
br i1 %cmp1, label %if.then2, label %if.end
if.then2:
call void asm sideeffect ".space 10", "~{$1}"()
%call = call i32 bitcast (i32 (...)* @boo to i32 ()*)()
store i32 %call, i32* %retval, align 4
br label %return
if.end:
call void asm sideeffect ".space 4194228", "~{$1}"()
%call3 = call i32 bitcast (i32 (...)* @foo to i32 ()*)()
store i32 %call3, i32* %retval, align 4
br label %return
if.end4:
store i32 0, i32* %retval, align 4
br label %return
return:
%2 = load i32, i32* %retval, align 4
ret i32 %2
}