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[PowerPC] Option controling scalar MASS convertion 

differential: https://reviews.llvm.org/D119035

reviewer: bmahjour
This commit is contained in:
Masoud Ataei 2022-02-04 13:24:22 -08:00
parent f457863ae3
commit 8ce13bc93b
13 changed files with 34 additions and 22 deletions
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5
llvm/include/llvm/Target/TargetOptions.h
View File

@ -142,7 +142,7 @@ namespace llvm {
SupportsDebugEntryValues(false), EnableDebugEntryValues(false),
ValueTrackingVariableLocations(false), ForceDwarfFrameSection(false),
XRayOmitFunctionIndex(false), DebugStrictDwarf(false),
Hotpatch(false),
Hotpatch(false), PPCGenScalarMASSEntries(false),
FPDenormalMode(DenormalMode::IEEE, DenormalMode::IEEE) {}
/// DisableFramePointerElim - This returns true if frame pointer elimination
@ -345,6 +345,9 @@ namespace llvm {
/// Emit the hotpatch flag in CodeView debug.
unsigned Hotpatch : 1;
/// Enables scalar MASS conversions
unsigned PPCGenScalarMASSEntries : 1;
/// Name of the stack usage file (i.e., .su file) if user passes
/// -fstack-usage. If empty, it can be implied that -fstack-usage is not
/// passed on the command line.

3
llvm/lib/Target/PowerPC/PPCISelLowering.cpp
View File

@ -382,7 +382,8 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM,
// MASS transformation for LLVM intrinsics with replicating fast-math flag
// to be consistent to PPCGenScalarMASSEntries pass
if (TM.getOptLevel() == CodeGenOpt::Aggressive){
if (TM.getOptLevel() == CodeGenOpt::Aggressive &&
TM.Options.PPCGenScalarMASSEntries) {
setOperationAction(ISD::FSIN , MVT::f64, Custom);
setOperationAction(ISD::FCOS , MVT::f64, Custom);
setOperationAction(ISD::FPOW , MVT::f64, Custom);

11
llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
View File

@ -97,6 +97,13 @@ static cl::opt<bool>
ReduceCRLogical("ppc-reduce-cr-logicals",
cl::desc("Expand eligible cr-logical binary ops to branches"),
cl::init(true), cl::Hidden);
static cl::opt<bool> EnablePPCGenScalarMASSEntries(
"enable-ppc-gen-scalar-mass", cl::init(false),
cl::desc("Enable lowering math functions to their corresponding MASS "
"(scalar) entries"),
cl::Hidden);
extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializePowerPCTarget() {
// Register the targets
RegisterTargetMachine<PPCTargetMachine> A(getThePPC32Target());
@ -432,7 +439,9 @@ void PPCPassConfig::addIRPasses() {
// Generate PowerPC target-specific entries for scalar math functions
// that are available in IBM MASS (scalar) library.
if (TM->getOptLevel() == CodeGenOpt::Aggressive) {
if (TM->getOptLevel() == CodeGenOpt::Aggressive &&
EnablePPCGenScalarMASSEntries) {
TM->Options.PPCGenScalarMASSEntries = EnablePPCGenScalarMASSEntries;
addPass(createPPCGenScalarMASSEntriesPass());
}

1
llvm/test/CodeGen/PowerPC/O3-pipeline.ll
View File

@ -21,7 +21,6 @@
; CHECK-NEXT: Convert i1 constants to i32/i64 if they are returned
; CHECK-NEXT: Expand Atomic instructions
; CHECK-NEXT: PPC Lower MASS Entries
; CHECK-NEXT: PPC Generate Scalar MASS Entries
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Natural Loop Information

4
llvm/test/CodeGen/PowerPC/lower-intrinsics-afn-mass.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
declare float @llvm.cos.f32(float)
declare float @llvm.exp.f32(float)

4
llvm/test/CodeGen/PowerPC/lower-intrinsics-fast-mass.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
declare float @llvm.cos.f32(float)
declare float @llvm.exp.f32(float)

4
llvm/test/CodeGen/PowerPC/lower-intrinsics-nofast-mass.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
declare float @llvm.cos.f32(float)
declare float @llvm.exp.f32(float)

4
llvm/test/CodeGen/PowerPC/lower-scalar-mass-afn.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
declare float @acosf (float);
declare float @acoshf (float);

4
llvm/test/CodeGen/PowerPC/lower-scalar-mass-fast.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
declare float @acosf (float);
declare float @acoshf (float);

4
llvm/test/CodeGen/PowerPC/lower-scalar-mass-nofast.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
; RUN: llc -enable-ppc-gen-scalar-mass -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck %s
declare float @acosf (float);
declare float @acoshf (float);

4
llvm/test/CodeGen/PowerPC/pow-025-075-intrinsic-scalar-mass-afn.ll
View File

@ -1,5 +1,5 @@
; RUN: llc -verify-machineinstrs -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck --check-prefix=CHECK-LNX %s
; RUN: llc -verify-machineinstrs -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefix=CHECK-AIX %s
; RUN: llc -enable-ppc-gen-scalar-mass -verify-machineinstrs -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck --check-prefix=CHECK-LNX %s
; RUN: llc -enable-ppc-gen-scalar-mass -verify-machineinstrs -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefix=CHECK-AIX %s
declare float @llvm.pow.f32 (float, float);
declare double @llvm.pow.f64 (double, double);

4
llvm/test/CodeGen/PowerPC/pow-025-075-intrinsic-scalar-mass-fast.ll
View File

@ -1,6 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck --check-prefix=CHECK-LNX %s
; RUN: llc -verify-machineinstrs -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefix=CHECK-AIX %s
; RUN: llc -enable-ppc-gen-scalar-mass -verify-machineinstrs -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck --check-prefix=CHECK-LNX %s
; RUN: llc -enable-ppc-gen-scalar-mass -verify-machineinstrs -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefix=CHECK-AIX %s
declare float @llvm.pow.f32 (float, float);
declare double @llvm.pow.f64 (double, double);

4
llvm/test/CodeGen/PowerPC/pow-025-075-nointrinsic-scalar-mass-fast.ll
View File

@ -1,6 +1,6 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -verify-machineinstrs -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck --check-prefix=CHECK-LNX %s
; RUN: llc -verify-machineinstrs -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefix=CHECK-AIX %s
; RUN: llc -enable-ppc-gen-scalar-mass -verify-machineinstrs -O3 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck --check-prefix=CHECK-LNX %s
; RUN: llc -enable-ppc-gen-scalar-mass -verify-machineinstrs -O3 -mtriple=powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefix=CHECK-AIX %s
declare float @powf (float, float);
declare double @pow (double, double);