6ac71a0149
This patch introduces a new version for the basic block sections profile as was requested in D158442, while keeping backward compatibility for the old version. The new encoding is as follows: ``` m <module_name> f <function_name_1> <function_name_2>... c <bb_id_1> <bb_id_2> <bb_id_3> c <bb_id_4> <bb_id_5> ... ``` Module name specifier (starting with 'm') is optional and allows distinguishing profiles for internal-linkage functions with the same name. If not specified, profile will be applied to any function with the same name. Function name specifier (starting with 'f') can specify multiple function name aliases. Finally, basic block clusters are specified by 'c' and specify the cluster of basic blocks, and the internal order in which they must be placed in the same section.
70 lines
3.0 KiB
LLVM
70 lines
3.0 KiB
LLVM
;; This file tests specifying the debug info filename in the basic block sections profile.
|
|
;; Specify the right filename.
|
|
; RUN: echo '!test M=/path/to/dir/test_filename' > %t1
|
|
; RUN: echo '!!0' >> %t1
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t1 | FileCheck %s -check-prefix=RIGHT-MODULE
|
|
;; Specify no filename and verify that the profile is ingested.
|
|
; RUN: echo '!test' > %t2
|
|
; RUN: echo '!!0' >> %t2
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t2 | FileCheck %s -check-prefix=NO-MODULE
|
|
;; Specify wrong filenames and verify that the profile is not ingested.
|
|
; RUN: echo '!test M=test_filename' > %t3
|
|
; RUN: echo '!!0' >> %t3
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t3 | FileCheck %s -check-prefix=WRONG-MODULE
|
|
; RUN: echo '!test M=./path/to/dir/test_filename' > %t4
|
|
; RUN: echo '!!0' >> %t4
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t4 | FileCheck %s -check-prefix=WRONG-MODULE
|
|
;; Version 1 profile.
|
|
;; Specify the right filename.
|
|
; RUN: echo 'v1' > %t5
|
|
; RUN: echo 'm /path/to/dir/test_filename' >> %t5
|
|
; RUN: echo 'f test' >> %t5
|
|
; RUN: echo 'c 0' >> %t5
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t5 | FileCheck %s -check-prefix=RIGHT-MODULE
|
|
;; Specify no filename and verify that the profile is ingested.
|
|
; RUN: echo 'v1' > %t6
|
|
; RUN: echo 'f test' >> %t6
|
|
; RUN: echo 'c 0' >> %t6
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t6 | FileCheck %s -check-prefix=NO-MODULE
|
|
;; Specify wrong filenames and verify that the profile is not ingested.
|
|
; RUN: echo 'v1' > %t7
|
|
; RUN: echo 'm test_filename' >> %t7
|
|
; RUN: echo 'f test' >> %t7
|
|
; RUN: echo 'c 0' >> %t7
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t7 | FileCheck %s -check-prefix=WRONG-MODULE
|
|
; RUN: echo 'v1' > %t8
|
|
; RUN: echo 'm ./path/to/dir/test_filename' >> %t8
|
|
; RUN: echo 'f test' >> %t8
|
|
; RUN: echo 'c 0' >> %t8
|
|
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-sections=%t8 | FileCheck %s -check-prefix=WRONG-MODULE
|
|
|
|
|
|
define dso_local i32 @test(i32 noundef %0) #0 !dbg !10 {
|
|
%2 = alloca i32, align 4
|
|
%3 = alloca i32, align 4
|
|
store i32 %0, i32* %3, align 4
|
|
%4 = load i32, i32* %3, align 4
|
|
%5 = icmp slt i32 %4, 0
|
|
br i1 %5, label %6, label %7
|
|
6: ; preds = %1
|
|
store i32 -1, i32* %2, align 4
|
|
ret i32 0
|
|
7:
|
|
ret i32 1
|
|
}
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!2, !3}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1)
|
|
!1 = !DIFile(filename: "/path/to/dir/test_filename", directory: "/path/to/dir")
|
|
!2 = !{i32 7, !"Dwarf Version", i32 5}
|
|
!3 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!10 = distinct !DISubprogram(name: "test", scope: !1, unit: !0)
|
|
|
|
;; Check that the split section is created when using the correct module name, or no module name.
|
|
;
|
|
; RIGHT-MODULE: .section .text.split.test,"ax",@progbits
|
|
; NO-MODULE: .section .text.split.test,"ax",@progbits
|
|
; WRONG-MODULE-NOT: .section .text.split.test,"ax",@progbits
|