[Driver] Support fprofile-sample-use= for CL #117282
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Sampling PGO has already been supported on Windows. This patch adds /fprofile-sample-use= /fprofile-sample-use: /fno-profile-sample-use and supports -fprofile-sample-use= for CL.
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@llvm/pr-subscribers-clang-driver Author: Haohai Wen (HaohaiWen) ChangesSampling PGO has already been supported on Windows. This patch adds Full diff: https://github.com/llvm/llvm-project/pull/117282.diff 3 Files Affected:
diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst
index 2ef603d64557f3..e5d67bc58350c7 100644
--- a/clang/docs/UsersManual.rst
+++ b/clang/docs/UsersManual.rst
@@ -2660,7 +2660,7 @@ usual build cycle when using sample profilers for optimization:
> clang-cl /O2 -gdwarf -gline-tables-only ^
/clang:-fdebug-info-for-profiling /clang:-funique-internal-linkage-names ^
- /fprofile-sample-use=code.prof code.cc /Fe:code /fuse-ld=lld /link /debug:dwarf
+ /fprofile-sample-use=code.prof code.cc /Fe:code -fuse-ld=lld /link /debug:dwarf
[OPTIONAL] Sampling-based profiles can have inaccuracies or missing block/
edge counters. The profile inference algorithm (profi) can be used to infer
@@ -2679,7 +2679,7 @@ usual build cycle when using sample profilers for optimization:
> clang-cl /clang:-fsample-profile-use-profi /O2 -gdwarf -gline-tables-only ^
/clang:-fdebug-info-for-profiling /clang:-funique-internal-linkage-names ^
- /fprofile-sample-use=code.prof code.cc /Fe:code /fuse-ld=lld /link /debug:dwarf
+ /fprofile-sample-use=code.prof code.cc /Fe:code -fuse-ld=lld /link /debug:dwarf
Sample Profile Formats
""""""""""""""""""""""
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 5167c3c39e315a..3a9655d89ff67b 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1736,7 +1736,7 @@ def fno_profile_sample_use : Flag<["-"], "fno-profile-sample-use">, Group<f_Grou
Visibility<[ClangOption, CLOption]>;
def fprofile_sample_use_EQ : Joined<["-"], "fprofile-sample-use=">,
Group<f_Group>,
- Visibility<[ClangOption, CC1Option]>,
+ Visibility<[ClangOption, CLOption, CC1Option]>,
HelpText<"Enable sample-based profile guided optimizations">,
MarshallingInfoString<CodeGenOpts<"SampleProfileFile">>;
def fprofile_sample_accurate : Flag<["-"], "fprofile-sample-accurate">,
@@ -8484,6 +8484,9 @@ def _SLASH_fp_strict : CLFlag<"fp:strict">, HelpText<"">, Alias<ffp_model_EQ>, A
def _SLASH_fsanitize_EQ_address : CLFlag<"fsanitize=address">,
HelpText<"Enable AddressSanitizer">,
Alias<fsanitize_EQ>, AliasArgs<["address"]>;
+def : CLJoined<"fno-profile-sample-use">, Alias<fno_profile_sample_use>;
+def : CLJoined<"fprofile-sample-use:">, Alias<fprofile_sample_use_EQ>;
+def : CLJoined<"fprofile-sample-use=">, Alias<fprofile_sample_use_EQ>;
def _SLASH_GA : CLFlag<"GA">, Alias<ftlsmodel_EQ>, AliasArgs<["local-exec"]>,
HelpText<"Assume thread-local variables are defined in the executable">;
def _SLASH_GR : CLFlag<"GR">, HelpText<"Emit RTTI data (default)">;
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
index 8191fda97788c1..f219304111a94c 100644
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -101,6 +101,14 @@
// CHECK-PROFILE-USE: "-fprofile-instrument-use-path=default.profdata"
// CHECK-PROFILE-USE-FILE: "-fprofile-instrument-use-path=/tmp/somefile.prof"
+// RUN: %clang_cl -### /FA -fprofile-sample-use=%S/Inputs/file.prof -- %s 2>&1 | FileCheck --check-prefix=CHECK-PROFILE-SAMPLE-USE %s
+// RUN: %clang_cl -### /FA /fprofile-sample-use=%S/Inputs/file.prof -- %s 2>&1 | FileCheck --check-prefix=CHECK-PROFILE-SAMPLE-USE %s
+// RUN: %clang_cl -### /FA /fprofile-sample-use:%S/Inputs/file.prof -- %s 2>&1 | FileCheck --check-prefix=CHECK-PROFILE-SAMPLE-USE %s
+// CHECK-PROFILE-SAMPLE-USE: "-fprofile-sample-use={{.*}}/file.prof"
+
+// RUN: %clang_cl -### /FA /fprofile-sample-use=%S/Inputs/file.prof /fno-profile-sample-use -- %s 2>&1 | FileCheck -check-prefix=CHECK-NO-PROFILE-SAMPLE-USE %s
+// CHECK-NO-PROFILE-SAMPLE-USE-NOT: "-fprofile-sample-use={{.*}}/file.prof"
+
// RUN: %clang_cl /GA -### -- %s 2>&1 | FileCheck -check-prefix=GA %s
// GA: -ftls-model=local-exec
|
Member
|
@llvm/pr-subscribers-clang Author: Haohai Wen (HaohaiWen) ChangesSampling PGO has already been supported on Windows. This patch adds Full diff: https://github.com/llvm/llvm-project/pull/117282.diff 3 Files Affected:
diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst
index 2ef603d64557f3..e5d67bc58350c7 100644
--- a/clang/docs/UsersManual.rst
+++ b/clang/docs/UsersManual.rst
@@ -2660,7 +2660,7 @@ usual build cycle when using sample profilers for optimization:
> clang-cl /O2 -gdwarf -gline-tables-only ^
/clang:-fdebug-info-for-profiling /clang:-funique-internal-linkage-names ^
- /fprofile-sample-use=code.prof code.cc /Fe:code /fuse-ld=lld /link /debug:dwarf
+ /fprofile-sample-use=code.prof code.cc /Fe:code -fuse-ld=lld /link /debug:dwarf
[OPTIONAL] Sampling-based profiles can have inaccuracies or missing block/
edge counters. The profile inference algorithm (profi) can be used to infer
@@ -2679,7 +2679,7 @@ usual build cycle when using sample profilers for optimization:
> clang-cl /clang:-fsample-profile-use-profi /O2 -gdwarf -gline-tables-only ^
/clang:-fdebug-info-for-profiling /clang:-funique-internal-linkage-names ^
- /fprofile-sample-use=code.prof code.cc /Fe:code /fuse-ld=lld /link /debug:dwarf
+ /fprofile-sample-use=code.prof code.cc /Fe:code -fuse-ld=lld /link /debug:dwarf
Sample Profile Formats
""""""""""""""""""""""
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 5167c3c39e315a..3a9655d89ff67b 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -1736,7 +1736,7 @@ def fno_profile_sample_use : Flag<["-"], "fno-profile-sample-use">, Group<f_Grou
Visibility<[ClangOption, CLOption]>;
def fprofile_sample_use_EQ : Joined<["-"], "fprofile-sample-use=">,
Group<f_Group>,
- Visibility<[ClangOption, CC1Option]>,
+ Visibility<[ClangOption, CLOption, CC1Option]>,
HelpText<"Enable sample-based profile guided optimizations">,
MarshallingInfoString<CodeGenOpts<"SampleProfileFile">>;
def fprofile_sample_accurate : Flag<["-"], "fprofile-sample-accurate">,
@@ -8484,6 +8484,9 @@ def _SLASH_fp_strict : CLFlag<"fp:strict">, HelpText<"">, Alias<ffp_model_EQ>, A
def _SLASH_fsanitize_EQ_address : CLFlag<"fsanitize=address">,
HelpText<"Enable AddressSanitizer">,
Alias<fsanitize_EQ>, AliasArgs<["address"]>;
+def : CLJoined<"fno-profile-sample-use">, Alias<fno_profile_sample_use>;
+def : CLJoined<"fprofile-sample-use:">, Alias<fprofile_sample_use_EQ>;
+def : CLJoined<"fprofile-sample-use=">, Alias<fprofile_sample_use_EQ>;
def _SLASH_GA : CLFlag<"GA">, Alias<ftlsmodel_EQ>, AliasArgs<["local-exec"]>,
HelpText<"Assume thread-local variables are defined in the executable">;
def _SLASH_GR : CLFlag<"GR">, HelpText<"Emit RTTI data (default)">;
diff --git a/clang/test/Driver/cl-options.c b/clang/test/Driver/cl-options.c
index 8191fda97788c1..f219304111a94c 100644
--- a/clang/test/Driver/cl-options.c
+++ b/clang/test/Driver/cl-options.c
@@ -101,6 +101,14 @@
// CHECK-PROFILE-USE: "-fprofile-instrument-use-path=default.profdata"
// CHECK-PROFILE-USE-FILE: "-fprofile-instrument-use-path=/tmp/somefile.prof"
+// RUN: %clang_cl -### /FA -fprofile-sample-use=%S/Inputs/file.prof -- %s 2>&1 | FileCheck --check-prefix=CHECK-PROFILE-SAMPLE-USE %s
+// RUN: %clang_cl -### /FA /fprofile-sample-use=%S/Inputs/file.prof -- %s 2>&1 | FileCheck --check-prefix=CHECK-PROFILE-SAMPLE-USE %s
+// RUN: %clang_cl -### /FA /fprofile-sample-use:%S/Inputs/file.prof -- %s 2>&1 | FileCheck --check-prefix=CHECK-PROFILE-SAMPLE-USE %s
+// CHECK-PROFILE-SAMPLE-USE: "-fprofile-sample-use={{.*}}/file.prof"
+
+// RUN: %clang_cl -### /FA /fprofile-sample-use=%S/Inputs/file.prof /fno-profile-sample-use -- %s 2>&1 | FileCheck -check-prefix=CHECK-NO-PROFILE-SAMPLE-USE %s
+// CHECK-NO-PROFILE-SAMPLE-USE-NOT: "-fprofile-sample-use={{.*}}/file.prof"
+
// RUN: %clang_cl /GA -### -- %s 2>&1 | FileCheck -check-prefix=GA %s
// GA: -ftls-model=local-exec
|
| > clang-cl /O2 -gdwarf -gline-tables-only ^ | ||
| /clang:-fdebug-info-for-profiling /clang:-funique-internal-linkage-names ^ | ||
| /fprofile-sample-use=code.prof code.cc /Fe:code /fuse-ld=lld /link /debug:dwarf |
Contributor
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I take it this wasn't working? (Neither /fprofile-sample-use nor /fuse-ld?)
Contributor
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Yes. I checked options.td.
-fprofile-sample-use was not a CLOption and there's no /fuse-ld.
HaohaiWen
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MaskRay
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Nov 25, 2024
| def _SLASH_fsanitize_EQ_address : CLFlag<"fsanitize=address">, | ||
| HelpText<"Enable AddressSanitizer">, | ||
| Alias<fsanitize_EQ>, AliasArgs<["address"]>; | ||
| def : CLJoined<"fno-profile-sample-use">, Alias<fno_profile_sample_use>; |
Member
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Do we really need these aliases?
Contributor
Author
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For me, /fprofile-sample-use= is needed.
I saw other CL _EQ flags has _COL alias.
In fact, I don't really need /fno-profile-sample-use.
Contributor
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Removed /fno-profile-sample-use.
Contributor
Author
|
I'd like to merge it in if no objection. |
Member
|
Adding CLOption to -fprofile-sample-use= suffices. |
Contributor
Author
Got it. I checked CL flags with MSVC. You're right. |
HaohaiWen
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Nov 28, 2024
Those flags are introduced in llvm#117282. They are not supported by MSVC.
HaohaiWen
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that referenced
this pull request
Nov 28, 2024
Those flags are introduced in #117282. They are not supported by MSVC.
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Sampling PGO has already been supported on Windows. This patch adds
/fprofile-sample-use= /fprofile-sample-use: /fno-profile-sample-use and
supports -fprofile-sample-use= for CL.