Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

8343724: [PPC64] Disallow OptoScheduling #3105

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

8343724: [PPC64] Disallow OptoScheduling #3105

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
18 changes: 1 addition & 17 deletions src/hotspot/cpu/ppc/c2_init_ppc.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -34,21 +34,5 @@
// Processor dependent initialization of C2 compiler for ppc.

void Compile::pd_compiler2_init() {

// Power7 and later.
if (PowerArchitecturePPC64 > 6) {
if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
FLAG_SET_ERGO(UsePopCountInstruction, true);
}
}

if (!VM_Version::has_isel() && FLAG_IS_DEFAULT(ConditionalMoveLimit)) {
FLAG_SET_ERGO(ConditionalMoveLimit, 0);
}

if (OptimizeFill) {
warning("OptimizeFill is not supported on this CPU.");
FLAG_SET_DEFAULT(OptimizeFill, false);
}

guarantee(CodeEntryAlignment >= InteriorEntryAlignment, "");
}
22 changes: 22 additions & 0 deletions src/hotspot/cpu/ppc/vm_version_ppc.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -117,6 +117,17 @@ void VM_Version::initialize() {
FLAG_SET_ERGO(TrapBasedRangeChecks, false);
}

// Power7 and later.
if (PowerArchitecturePPC64 > 6) {
if (FLAG_IS_DEFAULT(UsePopCountInstruction)) {
FLAG_SET_ERGO(UsePopCountInstruction, true);
}
}

if (!VM_Version::has_isel() && FLAG_IS_DEFAULT(ConditionalMoveLimit)) {
FLAG_SET_ERGO(ConditionalMoveLimit, 0);
}

if (PowerArchitecturePPC64 >= 8) {
if (FLAG_IS_DEFAULT(SuperwordUseVSX)) {
FLAG_SET_ERGO(SuperwordUseVSX, true);
Expand Down Expand Up @@ -176,6 +187,17 @@ void VM_Version::initialize() {
FLAG_SET_DEFAULT(UseByteReverseInstructions, false);
}
}

if (OptimizeFill) {
warning("OptimizeFill is not supported on this CPU.");
FLAG_SET_DEFAULT(OptimizeFill, false);
}

if (OptoScheduling) {
// The OptoScheduling information is not maintained in ppd.ad.
warning("OptoScheduling is not supported on this CPU.");
FLAG_SET_DEFAULT(OptoScheduling, false);
}
#endif

// Create and print feature-string.
Expand Down