1 ; Check if basic blocks that don't get unique sections are placed in cold sections.
2 ; Basic block with id 1 and 2 must be in the cold section.
3 ; RUN: echo '!_Z3bazb' > %t
4 ; RUN: echo '!!0' >> %t
5 ; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t -unique-basic-block-section-names | FileCheck %s -check-prefix=LINUX-SECTIONS
6 ; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t -unique-basic-block-section-names -bbsections-cold-text-prefix=".text.unlikely." | FileCheck %s -check-prefix=LINUX-SPLIT
8 define void @_Z3bazb(i1 zeroext %0) nounwind {
9 br i1 %0, label %2, label %4
12 %3 = call i32 @_Z3barv()
16 %5 = call i32 @_Z3foov()
23 declare i32 @_Z3barv() #1
25 declare i32 @_Z3foov() #1
27 ; LINUX-SECTIONS: .section .text.hot._Z3bazb,"ax",@progbits
28 ; LINUX-SECTIONS: _Z3bazb:
29 ; Check that the basic block with id 1 doesn't get a section.
30 ; LINUX-SECTIONS-NOT: .section .text{{.*}}._Z3bazb.1,"ax",@progbits,unique
31 ; Check that a single cold section is started here and id 1 and 2 blocks are placed here.
32 ; LINUX-SECTIONS: .section .text.split._Z3bazb,"ax",@progbits
33 ; LINUX-SECTIONS: _Z3bazb.cold:
34 ; LINUX-SECTIONS-NOT: .section .text.hot._Z3bazb._Z3bazb.2,"ax",@progbits,unique
35 ; LINUX-SECTIONS: .LBB0_2:
36 ; LINUX-SECTIONS: .size _Z3bazb, .Lfunc_end{{[0-9]}}-_Z3bazb
38 ; LINUX-SPLIT: .section .text.unlikely._Z3bazb,"ax",@progbits
39 ; LINUX-SPLIT-NEXT: _Z3bazb.cold:
40 ; LINUX-SPLIT-NEXT: callq _Z3barv
41 ; LINUX-SPLIT: .LBB0_2:
42 ; LINUX-SPLIT: .LBB_END0_2: