mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
a06cf58c03
After using this for a while, we find that it is generally useful to have it set to .text.split. by default, removing the need for an additional -mllvm option. Differential Revision: https://reviews.llvm.org/D88997
43 lines
1.7 KiB
LLVM
43 lines
1.7 KiB
LLVM
; Check if basic blocks that don't get unique sections are placed in cold sections.
|
|
; Basic block with id 1 and 2 must be in the cold section.
|
|
; RUN: echo '!_Z3bazb' > %t
|
|
; RUN: echo '!!0' >> %t
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t -unique-basic-block-section-names | FileCheck %s -check-prefix=LINUX-SECTIONS
|
|
; 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
|
|
|
|
define void @_Z3bazb(i1 zeroext %0) nounwind {
|
|
br i1 %0, label %2, label %4
|
|
|
|
2: ; preds = %1
|
|
%3 = call i32 @_Z3barv()
|
|
br label %6
|
|
|
|
4: ; preds = %1
|
|
%5 = call i32 @_Z3foov()
|
|
br label %6
|
|
|
|
6: ; preds = %2, %4
|
|
ret void
|
|
}
|
|
|
|
declare i32 @_Z3barv() #1
|
|
|
|
declare i32 @_Z3foov() #1
|
|
|
|
; LINUX-SECTIONS: .section .text._Z3bazb,"ax",@progbits
|
|
; LINUX-SECTIONS: _Z3bazb:
|
|
; Check that the basic block with id 1 doesn't get a section.
|
|
; LINUX-SECTIONS-NOT: .section .text._Z3bazb._Z3bazb.1,"ax",@progbits,unique
|
|
; Check that a single cold section is started here and id 1 and 2 blocks are placed here.
|
|
; LINUX-SECTIONS: .section .text.split._Z3bazb,"ax",@progbits
|
|
; LINUX-SECTIONS: _Z3bazb.cold:
|
|
; LINUX-SECTIONS-NOT: .section .text._Z3bazb._Z3bazb.2,"ax",@progbits,unique
|
|
; LINUX-SECTIONS: .LBB0_2:
|
|
; LINUX-SECTIONS: .size _Z3bazb, .Lfunc_end{{[0-9]}}-_Z3bazb
|
|
|
|
; LINUX-SPLIT: .section .text.unlikely._Z3bazb,"ax",@progbits
|
|
; LINUX-SPLIT-NEXT: _Z3bazb.cold:
|
|
; LINUX-SPLIT-NEXT: callq _Z3barv
|
|
; LINUX-SPLIT: .LBB0_2:
|
|
; LINUX-SPLIT: .LBB_END0_2:
|