Files
clang-p2996/llvm/test/Instrumentation/InstrProfiling/platform.ll
Rainer Orth 6fde832b82 [profile] Solaris ld supports __start___llvm_prof_data etc. labels
Currently, many profiling tests on Solaris FAIL like

  Command Output (stderr):
  --
  Undefined                       first referenced
   symbol                             in file
  __llvm_profile_register_names_function /tmp/lit_tmp_Nqu4eh/infinite_loop-9dc638.o
  __llvm_profile_register_function    /tmp/lit_tmp_Nqu4eh/infinite_loop-9dc638.o

Solaris 11.4 ld supports the non-standard GNU ld extension of adding
__start_SECNAME and __stop_SECNAME labels to sections whose names are valid
as C identifiers.  Given that we already use Solaris 11.4-only features
like ld -z gnu-version-script-compat and fully working .preinit_array
support in compiler-rt, we don't need to worry about older versions of
Solaris ld.

The patch documents that support (although the comment in
lib/Transforms/Instrumentation/InstrProfiling.cpp
(needsRuntimeRegistrationOfSectionRange) is quite cryptic what it's
actually about), and adapts the affected testcase not to expect the
alternativeq __llvm_profile_register_functions and __llvm_profile_init.
It fixes all affected tests.

Tested on amd64-pc-solaris2.11.

Differential Revision: https://reviews.llvm.org/D41111

llvm-svn: 363984
2019-06-20 21:27:06 +00:00

58 lines
3.3 KiB
LLVM

;; Checks for platform specific section names and initialization code.
; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -instrprof -S | FileCheck %s -check-prefix=MACHO
; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -passes=instrprof -S | FileCheck %s -check-prefix=MACHO
; RUN: opt < %s -mtriple=x86_64-unknown-linux -instrprof -S | FileCheck %s -check-prefixes=LINUX,ELF
; RUN: opt < %s -mtriple=x86_64-unknown-linux -passes=instrprof -S | FileCheck %s -check-prefixes=LINUX,ELF
; RUN: opt < %s -mtriple=x86_64-unknown-freebsd -instrprof -S | FileCheck %s -check-prefixes=FREEBSD,ELF
; RUN: opt < %s -mtriple=x86_64-unknown-freebsd -passes=instrprof -S | FileCheck %s -check-prefixes=FREEBSD,ELF
; RUN: opt < %s -mtriple=x86_64-scei-ps4 -instrprof -S | FileCheck %s -check-prefixes=PS4,ELF
; RUN: opt < %s -mtriple=x86_64-scei-ps4 -passes=instrprof -S | FileCheck %s -check-prefixes=PS4,ELF
; RUN: opt < %s -mtriple=x86_64-pc-solaris -instrprof -S | FileCheck %s -check-prefixes=SOLARIS,ELF
; RUN: opt < %s -mtriple=x86_64-pc-solaris -passes=instrprof -S | FileCheck %s -check-prefixes=SOLARIS,ELF
; RUN: opt < %s -mtriple=x86_64-pc-windows -instrprof -S | FileCheck %s -check-prefix=WINDOWS
; RUN: opt < %s -mtriple=x86_64-pc-windows -passes=instrprof -S | FileCheck %s -check-prefix=WINDOWS
@__profn_foo = hidden constant [3 x i8] c"foo"
; MACHO-NOT: __profn_foo
; ELF-NOT: __profn_foo
; WINDOWS-NOT: __profn_foo
; MACHO: @__profc_foo = hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
; ELF: @__profc_foo = hidden global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
; WINDOWS: @__profc_foo = internal global [1 x i64] zeroinitializer, section ".lprfc$M", align 8
; MACHO: @__profd_foo = hidden {{.*}}, section "__DATA,__llvm_prf_data,regular,live_support", align 8
; ELF: @__profd_foo = hidden {{.*}}, section "__llvm_prf_data", align 8
; WINDOWS: @__profd_foo = internal global {{.*}}, section ".lprfd$M", align 8
; ELF: @__llvm_prf_nm = private constant [{{.*}} x i8] c"{{.*}}", section "{{.*}}__llvm_prf_names", align 1
; WINDOWS: @__llvm_prf_nm = private constant [{{.*}} x i8] c"{{.*}}", section "{{.*}}lprfn$M", align 1
define void @foo() {
call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 0, i32 1, i32 0)
ret void
}
declare void @llvm.instrprof.increment(i8*, i64, i32, i32)
;; Emit registration functions for platforms that don't find the
;; symbols by their sections.
; MACHO-NOT: define internal void @__llvm_profile_register_functions
; LINUX-NOT: define internal void @__llvm_profile_register_functions
; FREEBSD-NOT: define internal void @__llvm_profile_register_functions
; SOLARIS-NOT: define internal void @__llvm_profile_register_functions
; PS4-NOT: define internal void @__llvm_profile_register_functions
; WINDOWS-NOT: define internal void @__llvm_profile_register_functions
;; PR38340: When dynamic registration is used, we had a bug where we'd register
;; something that's not a __profd_* variable.
; MACHO-NOT: define internal void @__llvm_profile_init
; LINUX-NOT: define internal void @__llvm_profile_init
; FREEBSD-NOT: define internal void @__llvm_profile_init
; SOLARIS-NOT: define internal void @__llvm_profile_init
; PS4-NOT: define internal void @__llvm_profile_init
; WINDOWS-NOT: define internal void @__llvm_profile_init