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;; 4;; Profile for version 0 5; RUN: echo '!_Z3bazb' > %t1 6; RUN: echo '!!0' >> %t1 7;; 8;; Profile for version 1 9; RUN: echo 'v1' > %t2 10; RUN: echo 'f _Z3bazb' >> %t2 11; RUN: echo 'c 0' >> %t2 12;; 13; RUN: llc < %s -mtriple=aarch64 -function-sections -basic-block-sections=%t1 -unique-basic-block-section-names | FileCheck %s -check-prefix=SECTIONS 14; RUN: llc < %s -mtriple=aarch64 -function-sections -basic-block-sections=%t2 -unique-basic-block-section-names | FileCheck %s -check-prefix=SECTIONS 15; RUN: llc < %s -mtriple=aarch64 -function-sections -basic-block-sections=%t1 -unique-basic-block-section-names -bbsections-cold-text-prefix=".text.unlikely." | FileCheck %s -check-prefix=SPLIT 16 17define void @_Z3bazb(i1 zeroext %0) nounwind { 18 br i1 %0, label %2, label %4 19 202: ; preds = %1 21 %3 = call i32 @_Z3barv() 22 br label %6 23 244: ; preds = %1 25 %5 = call i32 @_Z3foov() 26 br label %6 27 286: ; preds = %2, %4 29 ret void 30} 31 32declare i32 @_Z3barv() #1 33 34declare i32 @_Z3foov() #1 35 36; SECTIONS: .section .text.hot._Z3bazb,"ax",@progbits 37; SECTIONS: _Z3bazb: 38; Check that the basic block with id 1 doesn't get a section. 39; SECTIONS-NOT: .section .text{{.*}}._Z3bazb.1,"ax",@progbits,unique 40; Check that a single cold section is started here and id 1 and 2 blocks are placed here. 41; SECTIONS: .section .text.split._Z3bazb,"ax",@progbits 42; SECTIONS: _Z3bazb.cold: 43; SECTIONS-NOT: .section .text.hot._Z3bazb._Z3bazb.2,"ax",@progbits,unique 44; SECTIONS: .LBB0_2: 45; SECTIONS: .size _Z3bazb, .Lfunc_end{{[0-9]}}-_Z3bazb 46 47; SPLIT: .section .text.unlikely._Z3bazb,"ax",@progbits 48; SPLIT-NEXT: _Z3bazb.cold: 49; SPLIT-NEXT: bl _Z3barv 50; SPLIT: .LBB0_2: 51; SPLIT: .LBB_END0_2: 52