1; BB cluster section tests.
2;
3; Test1: Basic blocks #0 (entry) and #2 will be placed in the same section.
4; Basic block 1 will be placed in a unique section.
5; The rest will be placed in the cold section.
6; RUN: echo '!foo' > %t1
7; RUN: echo '!!0 2' >> %t1
8; RUN: echo '!!1' >> %t1
9; RUN: llc < %s -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t1 | FileCheck %s -check-prefix=LINUX-SECTIONS1
10;
11; Test2: Basic blocks #1 and #3 will be placed in the same section.
12; All other BBs (including the entry block) go into the function's section.
13; RUN: echo '!foo' > %t2
14; RUN: echo '!!1 3' >> %t2
15; RUN: llc < %s -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=%t2 | FileCheck %s -check-prefix=LINUX-SECTIONS2
16
17define void @foo(i1 zeroext) nounwind {
18  %2 = alloca i8, align 1
19  %3 = zext i1 %0 to i8
20  store i8 %3, i8* %2, align 1
21  %4 = load i8, i8* %2, align 1
22  %5 = trunc i8 %4 to i1
23  br i1 %5, label %6, label %8
24
256:                                                ; preds = %1
26  %7 = call i32 @bar()
27  br label %10
28
298:                                                ; preds = %1
30  %9 = call i32 @baz()
31  br label %10
32
3310:                                               ; preds = %8, %6
34  ret void
35}
36
37declare i32 @bar() #1
38
39declare i32 @baz() #1
40
41; LINUX-SECTIONS1:	   	.section	.text.foo,"ax",@progbits
42; LINUX-SECTIONS1-NOT:  	.section
43; LINUX-SECTIONS1-LABEL:	foo:
44; LINUX-SECTIONS1-NOT:  	.section
45; LINUX-SECTIONS1-NOT:  	.LBB_END0_{{0-9}}+
46; LINUX-SECTIONS1-LABEL:	# %bb.2:
47; LINUX-SECTIONS1-NOT:  	.LBB_END0_{{0-9}}+
48; LINUX-SECTIONS1:		.section        .text.foo,"ax",@progbits,unique,1
49; LINUX-SECTIONS1-LABEL:	foo.1:
50; LINUX-SECTIONS1-LABEL:	.LBB_END0_1:
51; LINUX-SECTIONS1-NEXT:        .size   foo.1, .LBB_END0_1-foo.1
52; LINUX-SECTIONS1-NOT:  	.section
53; LINUX-SECTIONS1:		.section        .text.split.foo,"ax",@progbits
54; LINUX-SECTIONS1-LABEL:	foo.cold:
55; LINUX-SECTIONS1-LABEL:	.LBB_END0_3:
56; LINUX-SECTIONS1-NEXT:        .size   foo.cold, .LBB_END0_3-foo.cold
57; LINUX-SECTIONS1:	   	.section	.text.foo,"ax",@progbits
58; LINUX-SECTIONS1-LABEL:	.Lfunc_end0:
59; LINUX-SECTIONS1-NEXT:		.size foo, .Lfunc_end0-foo
60
61; LINUX-SECTIONS2:		.section        .text.foo,"ax",@progbits
62; LINUX-SECTIONS2-NOT:   	.section
63; LINUX-SECTIONS2-LABEL:	foo:
64; LINUX-SECTIONS2-NOT:  	.LBB_END0_{{0-9}}+
65; LINUX-SECTIONS2-NOT:   	.section
66; LINUX-SECTIONS2-LABEL:	# %bb.2:
67; LINUX-SECTIONS2-NOT:  	.LBB_END0_{{0-9}}+
68; LINUX-SECTIONS2:		.section        .text.foo,"ax",@progbits,unique,1
69; LINUX-SECTIONS2-NEXT:		foo.0:
70; LINUX-SECTIONS2-NOT:  	.LBB_END0_{{0-9}}+
71; LINUX-SECTIONS2-NOT:  	.section
72; LINUX-SECTIONS2-LABEL:	.LBB0_3:
73; LINUX-SECTIONS2-LABEL:	.LBB_END0_3:
74; LINUX-SECTIONS2-NEXT:        .size   foo.0, .LBB_END0_3-foo.0
75; LINUX-SECTIONS2:		.section        .text.foo,"ax",@progbits
76; LINUX-SECTIONS2-NOT:  	.LBB_END0_{{0-9}}+
77; LINUX-SECTIONS2-LABEL:	.Lfunc_end0:
78; LINUX-SECTIONS2-NEXT:		.size foo, .Lfunc_end0-foo
79