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llvm-project/llvm/test/CodeGen/AArch64/machine-outliner-flags.ll

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[MachineOutliner] Add support for target-default outlining. This adds functionality to the outliner that allows targets to specify certain functions that should be outlined from by default. If a target supports default outlining, then it specifies that in its TargetOptions. In the case that it does, and the user hasn't specified that they *never* want to outline, the outliner will be added to the pass pipeline and will run on those default functions. This is a preliminary patch for turning the outliner on by default under -Oz for AArch64. https://reviews.llvm.org/D48776 llvm-svn: 336040
2018-06-30 11:56:03 +08:00
; REQUIRES: asserts
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; RUN: llc %s -debug-pass=Structure -verify-machineinstrs \
[MachineOutliner] Add support for target-default outlining. This adds functionality to the outliner that allows targets to specify certain functions that should be outlined from by default. If a target supports default outlining, then it specifies that in its TargetOptions. In the case that it does, and the user hasn't specified that they *never* want to outline, the outliner will be added to the pass pipeline and will run on those default functions. This is a preliminary patch for turning the outliner on by default under -Oz for AArch64. https://reviews.llvm.org/D48776 llvm-svn: 336040
2018-06-30 11:56:03 +08:00
; RUN: --debug-only=machine-outliner -enable-machine-outliner=always \
; RUN: -mtriple arm64---- -o /dev/null 2>&1 \
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; RUN: | FileCheck %s -check-prefix=ALWAYS
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
; RUN: llc %s -debug-pass=Structure -verify-machineinstrs \
[MachineOutliner] Add support for target-default outlining. This adds functionality to the outliner that allows targets to specify certain functions that should be outlined from by default. If a target supports default outlining, then it specifies that in its TargetOptions. In the case that it does, and the user hasn't specified that they *never* want to outline, the outliner will be added to the pass pipeline and will run on those default functions. This is a preliminary patch for turning the outliner on by default under -Oz for AArch64. https://reviews.llvm.org/D48776 llvm-svn: 336040
2018-06-30 11:56:03 +08:00
; RUN: --debug-only=machine-outliner -enable-machine-outliner \
; RUN: -mtriple arm64---- -o /dev/null 2>&1 \
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
; RUN: | FileCheck %s -check-prefix=ENABLE
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; RUN: llc %s -debug-pass=Structure -verify-machineinstrs \
; RUN: -enable-machine-outliner=never -mtriple arm64---- -o /dev/null 2>&1 \
; RUN: | FileCheck %s -check-prefix=NEVER
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
; RUN: llc %s -debug-pass=Structure -verify-machineinstrs \
Recommit "Enable MachineOutliner by default under -Oz for AArch64" Fixed the ASAN failure from before in r338148, so recommiting. This patch enables the MachineOutliner by default in AArch64 under -Oz. The MachineOutliner offers around a 4.5% improvement on the current -Oz code size improvements. We have done work into improving the debuggability of outlined code, so that users of -Oz won't be surprised by the optimization. We have also been executing the LLVM test suite and common external tests such as the SPEC suites continuously with no issue. The outliner has a low compile-time overhead of roughly 1%. At this point, the outliner would be a really good addition to the -Oz pass pipeline! llvm-svn: 338160
2018-07-28 04:18:27 +08:00
; RUN: --debug-only=machine-outliner -mtriple arm64---- -o /dev/null 2>&1 \
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
; RUN: | FileCheck %s -check-prefix=NOT-ADDED
; RUN: llc %s -O=0 -debug-pass=Structure -verify-machineinstrs \
; RUN: -mtriple arm64---- -o /dev/null 2>&1 \
; RUN: | FileCheck %s -check-prefix=OPTNONE
; Make sure that the outliner is added to the pass pipeline only when the
; appropriate flags/settings are set. Make sure it isn't added otherwise.
;
; Cases where it should be added:
; * -enable-machine-outliner
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; * -enable-machine-outliner=always
Recommit "Enable MachineOutliner by default under -Oz for AArch64" Fixed the ASAN failure from before in r338148, so recommiting. This patch enables the MachineOutliner by default in AArch64 under -Oz. The MachineOutliner offers around a 4.5% improvement on the current -Oz code size improvements. We have done work into improving the debuggability of outlined code, so that users of -Oz won't be surprised by the optimization. We have also been executing the LLVM test suite and common external tests such as the SPEC suites continuously with no issue. The outliner has a low compile-time overhead of roughly 1%. At this point, the outliner would be a really good addition to the -Oz pass pipeline! llvm-svn: 338160
2018-07-28 04:18:27 +08:00
; * -enable-machine-outliner is not passed (AArch64 supports
; target-default outlining)
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
;
; Cases where it should not be added:
; * -O0 or equivalent
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; * -enable-machine-outliner=never is passed
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; ALWAYS: Machine Outliner
[MachineOutliner] Add support for target-default outlining. This adds functionality to the outliner that allows targets to specify certain functions that should be outlined from by default. If a target supports default outlining, then it specifies that in its TargetOptions. In the case that it does, and the user hasn't specified that they *never* want to outline, the outliner will be added to the pass pipeline and will run on those default functions. This is a preliminary patch for turning the outliner on by default under -Oz for AArch64. https://reviews.llvm.org/D48776 llvm-svn: 336040
2018-06-30 11:56:03 +08:00
; ALWAYS: Machine Outliner: Running on all functions
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
; ENABLE: Machine Outliner
[MachineOutliner] Add support for target-default outlining. This adds functionality to the outliner that allows targets to specify certain functions that should be outlined from by default. If a target supports default outlining, then it specifies that in its TargetOptions. In the case that it does, and the user hasn't specified that they *never* want to outline, the outliner will be added to the pass pipeline and will run on those default functions. This is a preliminary patch for turning the outliner on by default under -Oz for AArch64. https://reviews.llvm.org/D48776 llvm-svn: 336040
2018-06-30 11:56:03 +08:00
; ENABLE: Machine Outliner: Running on all functions
[MachineOutliner] Add always and never options to -enable-machine-outliner This is a recommit of r335887, which was erroneously committed earlier. To enable the MachineOutliner by default on AArch64, we need to be able to disable the MachineOutliner and also provide an option to "always" enable the outliner. This adds that capability. It allows the user to still use the old -enable-machine-outliner option, which defaults to "always". This is building up to allowing the user to specify "always" versus the target default outlining behaviour. https://reviews.llvm.org/D48682 llvm-svn: 335986
2018-06-30 00:12:45 +08:00
; NEVER-NOT: Machine Outliner
Recommit "Enable MachineOutliner by default under -Oz for AArch64" Fixed the ASAN failure from before in r338148, so recommiting. This patch enables the MachineOutliner by default in AArch64 under -Oz. The MachineOutliner offers around a 4.5% improvement on the current -Oz code size improvements. We have done work into improving the debuggability of outlined code, so that users of -Oz won't be surprised by the optimization. We have also been executing the LLVM test suite and common external tests such as the SPEC suites continuously with no issue. The outliner has a low compile-time overhead of roughly 1%. At this point, the outliner would be a really good addition to the -Oz pass pipeline! llvm-svn: 338160
2018-07-28 04:18:27 +08:00
; NOT-ADDED: Machine Outliner
; NOT-ADDED: Machine Outliner: Running on target-default functions
[MachineOutliner] Never add the outliner in -O0 This is a recommit of r335879. We shouldn't add the outliner when compiling at -O0 even if -enable-machine-outliner is passed in. This makes sure that we don't add it in this case. This also removes -O0 from the outliner DWARF test. llvm-svn: 335930
2018-06-29 05:49:24 +08:00
; OPTNONE-NOT: Machine Outliner
define void @foo() {
ret void;
}