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ispc/ispc-1.23.0-llvm-18.1.patch

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From 71f6866107da93bb963e9e1a5d2313df493a7ce5 Mon Sep 17 00:00:00 2001
From: Arina Neshlyaeva <arina.neshlyaeva@intel.com>
Date: Wed, 14 Feb 2024 09:05:23 -0800
Subject: [PATCH] Fix ISPC build with LLVM 18.1 and trunk
---
alloy.py | 4 +-
...uxShuffleMask-handle-fp-int-bitcast.patch} | 0
...> 16_0_17_0_18_1_dbghelp_mitigation.patch} | 0
...ble-A-B-A-B-and-BSWAP-in-InstCombine.patch | 64 +++++++++++++++++++
src/ispc.cpp | 12 +++-
src/ispc_version.h | 9 +--
src/module.cpp | 19 +++++-
src/opt/ISPCPass.h | 6 +-
src/type.cpp | 6 +-
superbuild/CMakeLists.txt | 5 +-
tests/lit-tests/ftz_daz_flags_x86.ispc | 10 +--
tests/lit-tests/ftz_daz_flags_x86_64.ispc | 10 +--
12 files changed, 119 insertions(+), 26 deletions(-)
rename llvm_patches/{16_0_17_0-X86-getFauxShuffleMask-handle-fp-int-bitcast.patch => 16_0_17_0_18_1-X86-getFauxShuffleMask-handle-fp-int-bitcast.patch} (100%)
rename llvm_patches/{16_0_17_0_dbghelp_mitigation.patch => 16_0_17_0_18_1_dbghelp_mitigation.patch} (100%)
create mode 100644 llvm_patches/18_1_disable-A-B-A-B-and-BSWAP-in-InstCombine.patch
diff --git a/alloy.py b/alloy.py
index 6e276526c1..1dc9905943 100755
--- a/alloy.py
+++ b/alloy.py
@@ -1,6 +1,6 @@
#!/usr/bin/env python3
#
-# Copyright (c) 2013-2023, Intel Corporation
+# Copyright (c) 2013-2024, Intel Corporation
#
# SPDX-License-Identifier: BSD-3-Clause
@@ -93,6 +93,8 @@ def checkout_LLVM(component, version_LLVM, target_dir, from_validation, verbose)
# git: "release/16.x"
if version_LLVM == "trunk":
GIT_TAG="main"
+ elif version_LLVM == "18_1":
+ GIT_TAG="llvmorg-18.1.1"
elif version_LLVM == "17_0":
GIT_TAG="llvmorg-17.0.6"
elif version_LLVM == "16_0":
diff --git a/llvm_patches/16_0_17_0-X86-getFauxShuffleMask-handle-fp-int-bitcast.patch b/llvm_patches/16_0_17_0_18_1-X86-getFauxShuffleMask-handle-fp-int-bitcast.patch
similarity index 100%
rename from llvm_patches/16_0_17_0-X86-getFauxShuffleMask-handle-fp-int-bitcast.patch
rename to llvm_patches/16_0_17_0_18_1-X86-getFauxShuffleMask-handle-fp-int-bitcast.patch
diff --git a/llvm_patches/16_0_17_0_dbghelp_mitigation.patch b/llvm_patches/16_0_17_0_18_1_dbghelp_mitigation.patch
similarity index 100%
rename from llvm_patches/16_0_17_0_dbghelp_mitigation.patch
rename to llvm_patches/16_0_17_0_18_1_dbghelp_mitigation.patch
diff --git a/llvm_patches/18_1_disable-A-B-A-B-and-BSWAP-in-InstCombine.patch b/llvm_patches/18_1_disable-A-B-A-B-and-BSWAP-in-InstCombine.patch
new file mode 100644
index 0000000000..0655a86aa9
--- /dev/null
+++ b/llvm_patches/18_1_disable-A-B-A-B-and-BSWAP-in-InstCombine.patch
@@ -0,0 +1,64 @@
+# This patch is needed for ISPC for Xe only
+
+# 1. Transformation of add to or is not safe for VC backend.
+# 2. bswap intrinsics is not supported in VC backend yet.
+diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+index 8a00b75a1f..7e3147b6cb 100644
+--- a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
++++ b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+@@ -29,6 +29,7 @@
+ #include "llvm/Support/AlignOf.h"
+ #include "llvm/Support/Casting.h"
+ #include "llvm/Support/KnownBits.h"
++#include "llvm/TargetParser/Triple.h"
+ #include "llvm/Transforms/InstCombine/InstCombiner.h"
+ #include <cassert>
+ #include <utility>
+@@ -1579,11 +1580,15 @@ Instruction *InstCombinerImpl::visitAdd(BinaryOperator &I) {
+ if (match(&I, m_c_BinOp(m_ZExt(m_Value(A)), m_SExt(m_Deferred(A)))) &&
+ A->getType()->isIntOrIntVectorTy(1))
+ return replaceInstUsesWith(I, Constant::getNullValue(I.getType()));
+-
+- // A+B --> A|B iff A and B have no bits set in common.
++
+ WithCache<const Value *> LHSCache(LHS), RHSCache(RHS);
+- if (haveNoCommonBitsSet(LHSCache, RHSCache, SQ.getWithInstruction(&I)))
+- return BinaryOperator::CreateDisjointOr(LHS, RHS);
++
++ // Disable this transformation for ISPC SPIR-V
++ if (!Triple(I.getModule()->getTargetTriple()).isSPIR()) {
++ // A+B --> A|B iff A and B have no bits set in common.
++ if (haveNoCommonBitsSet(LHSCache, RHSCache, SQ.getWithInstruction(&I)))
++ return BinaryOperator::CreateDisjointOr(LHS, RHS);
++ }
+
+ if (Instruction *Ext = narrowMathIfNoOverflow(I))
+ return Ext;
+diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+index 5fd944a859..ad3ae96393 100644
+--- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
++++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+@@ -16,6 +16,7 @@
+ #include "llvm/IR/ConstantRange.h"
+ #include "llvm/IR/Intrinsics.h"
+ #include "llvm/IR/PatternMatch.h"
++#include "llvm/TargetParser/Triple.h"
+ #include "llvm/Transforms/InstCombine/InstCombiner.h"
+ #include "llvm/Transforms/Utils/Local.h"
+
+@@ -3389,9 +3390,12 @@ Instruction *InstCombinerImpl::visitOr(BinaryOperator &I) {
+ if (Instruction *FoldedLogic = foldBinOpIntoSelectOrPhi(I))
+ return FoldedLogic;
+
+- if (Instruction *BitOp = matchBSwapOrBitReverse(I, /*MatchBSwaps*/ true,
+- /*MatchBitReversals*/ true))
+- return BitOp;
++ // Disable this transformation for ISPC SPIR-V
++ if (!Triple(I.getModule()->getTargetTriple()).isSPIR()) {
++ if (Instruction *BitOp = matchBSwapOrBitReverse(I, /*MatchBSwaps*/ true,
++ /*MatchBitReversals*/ true))
++ return BitOp;
++ }
+
+ if (Instruction *Funnel = matchFunnelShift(I, *this, DT))
+ return Funnel;
diff --git a/src/ispc.cpp b/src/ispc.cpp
index e0a4515105..04b5205711 100644
--- a/src/ispc.cpp
+++ b/src/ispc.cpp
@@ -51,6 +51,12 @@
#include <llvm/Target/TargetMachine.h>
#include <llvm/Target/TargetOptions.h>
+#if ISPC_LLVM_VERSION > ISPC_LLVM_17_0
+using CodegenOptLevel = llvm::CodeGenOptLevel;
+#else
+using CodegenOptLevel = llvm::CodeGenOpt::Level;
+#endif
+
using namespace ispc;
Globals *ispc::g;
@@ -1707,14 +1713,14 @@ Target::Target(Arch arch, const char *cpu, ISPCTarget ispc_target, bool pic, MCM
// requested by user via ISPC Optimization Flag. Mapping is :
// ISPC O0 -> Codegen O0
// ISPC O1,O2,O3,default -> Codegen O3
- llvm::CodeGenOpt::Level cOptLevel = llvm::CodeGenOpt::Level::Aggressive;
+ CodegenOptLevel cOptLevel = CodegenOptLevel::Aggressive;
switch (g->codegenOptLevel) {
case Globals::CodegenOptLevel::None:
- cOptLevel = llvm::CodeGenOpt::Level::None;
+ cOptLevel = CodegenOptLevel::None;
break;
case Globals::CodegenOptLevel::Aggressive:
- cOptLevel = llvm::CodeGenOpt::Level::Aggressive;
+ cOptLevel = CodegenOptLevel::Aggressive;
break;
}
m_targetMachine->setOptLevel(cOptLevel);
diff --git a/src/ispc_version.h b/src/ispc_version.h
index d26129d864..6c343bbd41 100644
--- a/src/ispc_version.h
+++ b/src/ispc_version.h
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2015-2023, Intel Corporation
+ Copyright (c) 2015-2024, Intel Corporation
SPDX-License-Identifier: BSD-3-Clause
*/
@@ -19,10 +19,11 @@
#define ISPC_LLVM_15_0 150000
#define ISPC_LLVM_16_0 160000
#define ISPC_LLVM_17_0 170000
-#define ISPC_LLVM_18_0 180000
+#define ISPC_LLVM_18_1 181000
+#define ISPC_LLVM_19_0 190000
#define OLDEST_SUPPORTED_LLVM ISPC_LLVM_14_0
-#define LATEST_SUPPORTED_LLVM ISPC_LLVM_18_0
+#define LATEST_SUPPORTED_LLVM ISPC_LLVM_19_0
#ifdef __ispc__xstr
#undef __ispc__xstr
@@ -34,7 +35,7 @@
__ispc__xstr(LLVM_VERSION_MAJOR) "." __ispc__xstr(LLVM_VERSION_MINOR) "." __ispc__xstr(LLVM_VERSION_PATCH)
#if ISPC_LLVM_VERSION < OLDEST_SUPPORTED_LLVM || ISPC_LLVM_VERSION > LATEST_SUPPORTED_LLVM
-#error "Only LLVM 14.0 - 17.0 and 18.0 development branch are supported"
+#error "Only LLVM 14.0 - 18.1 and 19.0 development branch are supported"
#endif
#define ISPC_VERSION_STRING \
diff --git a/src/module.cpp b/src/module.cpp
index e883e61211..25a26686bf 100644
--- a/src/module.cpp
+++ b/src/module.cpp
@@ -115,6 +115,14 @@
#define strcasecmp stricmp
#endif
+// Clang defines alloca which interferes with standard library function.
+// It happenned after newly included clang/Basic/Builtins.h in PR71709
+#if ISPC_LLVM_VERSION > ISPC_LLVM_17_0
+#define ALLOCA __builtin_alloca
+#else
+#define ALLOCA alloca
+#endif
+
using namespace ispc;
// The magic constants are derived from https://github.com/intel/compute-runtime repo
@@ -495,7 +503,7 @@ Expr *lCreateConstExpr(ExprList *exprList, const AtomicType::BasicType basicType
} else {
// T equals int8_t* and etc.
using PointToType = typename std::remove_pointer<T>::type;
- vals = (T)alloca(N * sizeof(PointToType));
+ vals = (T)ALLOCA(N * sizeof(PointToType));
memset(vals, 0, N * sizeof(PointToType));
}
@@ -1751,9 +1759,15 @@ bool Module::writeObjectFileOrAssembly(llvm::TargetMachine *targetMachine, llvm:
const char *outFileName) {
// Figure out if we're generating object file or assembly output, and
// set binary output for object files
+#if ISPC_LLVM_VERSION > ISPC_LLVM_17_0
+ llvm::CodeGenFileType fileType =
+ (outputType == Object) ? llvm::CodeGenFileType::ObjectFile : llvm::CodeGenFileType::AssemblyFile;
+ bool binary = (fileType == llvm::CodeGenFileType::ObjectFile);
+#else
llvm::CodeGenFileType fileType = (outputType == Object) ? llvm::CGFT_ObjectFile : llvm::CGFT_AssemblyFile;
bool binary = (fileType == llvm::CGFT_ObjectFile);
+#endif
llvm::sys::fs::OpenFlags flags = binary ? llvm::sys::fs::OF_None : llvm::sys::fs::OF_Text;
std::error_code error;
@@ -3084,7 +3098,6 @@ static void lGetExportedFunctions(SymbolTable *symbolTable, std::map<std::string
}
static llvm::FunctionType *lGetVaryingDispatchType(FunctionTargetVariants &funcs) {
- llvm::Type *ptrToInt8Ty = llvm::Type::getInt8PtrTy(*g->ctx);
llvm::FunctionType *resultFuncTy = nullptr;
for (int i = 0; i < Target::NUM_ISAS; ++i) {
@@ -3109,7 +3122,7 @@ static llvm::FunctionType *lGetVaryingDispatchType(FunctionTargetVariants &funcs
// For each varying type pointed to, swap the LLVM pointer type
// with i8 * (as close as we can get to void *)
if (baseType->IsVaryingType()) {
- ftype[j] = ptrToInt8Ty;
+ ftype[j] = LLVMTypes::Int8PointerType;
foundVarying = true;
}
}
diff --git a/src/opt/ISPCPass.h b/src/opt/ISPCPass.h
index f02eb42fe1..c1c413377e 100644
--- a/src/opt/ISPCPass.h
+++ b/src/opt/ISPCPass.h
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2022-2023, Intel Corporation
+ Copyright (c) 2022-2024, Intel Corporation
SPDX-License-Identifier: BSD-3-Clause
*/
@@ -37,7 +37,9 @@
#include <llvm/Transforms/Instrumentation.h>
#include <llvm/Transforms/Utils.h>
#include <llvm/Transforms/Utils/BasicBlockUtils.h>
-#include <llvm/Transforms/Vectorize.h>
+#if ISPC_LLVM_VERSION > ISPC_LLVM_17_0
+#include <llvm/Transforms/Vectorize/LoadStoreVectorizer.h>
+#endif
#ifdef ISPC_XE_ENABLED
#include <llvm/GenXIntrinsics/GenXIntrOpts.h>
diff --git a/src/type.cpp b/src/type.cpp
index 8b95a80559..6ba39beb8d 100644
--- a/src/type.cpp
+++ b/src/type.cpp
@@ -1013,7 +1013,11 @@ llvm::DIType *EnumType::GetDIType(llvm::DIScope *scope) const {
llvm::DIType *underlyingType = AtomicType::UniformInt32->GetDIType(scope);
llvm::DIType *diType =
m->diBuilder->createEnumerationType(diSpace, GetString(), diFile, pos.first_line, 32 /* size in bits */,
- 32 /* align in bits */, elementArray, underlyingType, name);
+ 32 /* align in bits */, elementArray, underlyingType,
+#if ISPC_LLVM_VERSION > ISPC_LLVM_17_0
+ 0,
+#endif
+ name);
switch (variability.type) {
case Variability::Uniform:
return diType;
diff --git a/superbuild/CMakeLists.txt b/superbuild/CMakeLists.txt
index 8ace2a9965..7d86ca8ee7 100644
--- a/superbuild/CMakeLists.txt
+++ b/superbuild/CMakeLists.txt
@@ -192,9 +192,10 @@ string(APPEND LIT_TOOLS_DIR ${GNUWIN32} "/bin")
unset(LLVM_TAG)
unset(LLVM_VERSION_DOTTED)
string(REPLACE "." "_" LLVM_VERSION "${LLVM_VERSION}")
-if (${LLVM_VERSION} STREQUAL 17_0)
+if (${LLVM_VERSION} STREQUAL 18_1)
+ set(LLVM_TAG llvmorg-18.1.1)
+elseif (${LLVM_VERSION} STREQUAL 17_0)
set(LLVM_TAG llvmorg-17.0.6)
- set(LLVM_VERSION_DOTTED 17.0.6)
elseif (${LLVM_VERSION} STREQUAL 16_0)
set(LLVM_TAG llvmorg-16.0.6)
elseif (${LLVM_VERSION} STREQUAL 15_0)
diff --git a/tests/lit-tests/ftz_daz_flags_x86.ispc b/tests/lit-tests/ftz_daz_flags_x86.ispc
index 98bbf604f6..8ab2e473bc 100644
--- a/tests/lit-tests/ftz_daz_flags_x86.ispc
+++ b/tests/lit-tests/ftz_daz_flags_x86.ispc
@@ -4,19 +4,19 @@
// RUN: %{ispc} %s --target=avx2 --arch=x86 --nostdlib --emit-llvm-text --opt=reset-ftz-daz -o - | FileCheck %s
// RUN: %{ispc} %s --target=avx2 --arch=x86 --nostdlib --emit-llvm-text -o - | FileCheck --check-prefixes=CHECK_NO_FTZ_DAZ %s
-// CHECK: define float @test_ftz_daz___
+// CHECK-LABEL: @test_ftz_daz___
// CHECK-NOT: stmxcsr
// CHECK-NOT: ldmxcsr
-// CHECK: define float @export_test_ftz_daz___
+// CHECK-LABEL: @export_test_ftz_daz___
// CHECK-NOT: stmxcsr
// CHECK-NOT: ldmxcsr
-// CHECK: define void @export_void_test_ftz_daz___
+// CHECK-LABEL: @export_void_test_ftz_daz___
// CHECK-NOT: stmxcsr
// CHECK-NOT: ldmxcsr
-// CHECK: define float @externC_test_ftz_daz()
+// CHECK-LABEL: @externC_test_ftz_daz()
// CHECK: stmxcsr
// CHECK-COUNT-2: ldmxcsr
-// CHECK: define float @export_test_ftz_daz(
+// CHECK-LABEL: @export_test_ftz_daz(
// CHECK: stmxcsr
// CHECK-COUNT-2: ldmxcsr
diff --git a/tests/lit-tests/ftz_daz_flags_x86_64.ispc b/tests/lit-tests/ftz_daz_flags_x86_64.ispc
index 36bc58fba8..e68ee0f011 100644
--- a/tests/lit-tests/ftz_daz_flags_x86_64.ispc
+++ b/tests/lit-tests/ftz_daz_flags_x86_64.ispc
@@ -4,19 +4,19 @@
// RUN: %{ispc} %s --target=avx2 --arch=x86-64 --nostdlib --emit-llvm-text --opt=reset-ftz-daz -o - | FileCheck %s
// RUN: %{ispc} %s --target=avx2 --arch=x86-64 --nostdlib --emit-llvm-text -o - | FileCheck --check-prefixes=CHECK_NO_FTZ_DAZ %s
-// CHECK: define float @test_ftz_daz___
+// CHECK-LABEL: @test_ftz_daz___
// CHECK-NOT: stmxcsr
// CHECK-NOT: ldmxcsr
-// CHECK: define float @export_test_ftz_daz___
+// CHECK-LABEL: @export_test_ftz_daz___
// CHECK-NOT: stmxcsr
// CHECK-NOT: ldmxcsr
-// CHECK: define void @export_void_test_ftz_daz___
+// CHECK-LABEL: @export_void_test_ftz_daz___
// CHECK-NOT: stmxcsr
// CHECK-NOT: ldmxcsr
-// CHECK: define float @externC_test_ftz_daz()
+// CHECK-LABEL: @externC_test_ftz_daz()
// CHECK: stmxcsr
// CHECK-COUNT-2: ldmxcsr
-// CHECK: define float @export_test_ftz_daz(
+// CHECK-LABEL: @export_test_ftz_daz(
// CHECK: stmxcsr
// CHECK-COUNT-2: ldmxcsr
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