[PATCH] D87282: [SYCL] Assume SYCL device functions are convergent
Alexey Bader via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Tue Sep 29 05:24:13 PDT 2020
This revision was automatically updated to reflect the committed changes.
bader marked an inline comment as done.
Closed by commit rG9263931fcccd: [SYCL] Assume SYCL device functions are convergent (authored by bader).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D87282/new/
https://reviews.llvm.org/D87282
Files:
clang/lib/Frontend/CompilerInvocation.cpp
clang/test/CodeGenSYCL/convergent.cpp
Index: clang/test/CodeGenSYCL/convergent.cpp
===================================================================
--- /dev/null
+++ clang/test/CodeGenSYCL/convergent.cpp
@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -fsycl -fsycl-is-device -emit-llvm -disable-llvm-passes \
+// RUN: -triple spir64-unknown-unknown-sycldevice -emit-llvm %s -o - | \
+// RUN: FileCheck %s
+
+// CHECK-DAG: Function Attrs:
+// CHECK-DAG-SAME: convergent
+// CHECK-DAG-NEXT: define void @_Z3foov
+void foo() {
+ int a = 1;
+}
+
+template <typename Name, typename Func>
+__attribute__((sycl_kernel)) void kernel_single_task(const Func &kernelFunc) {
+ kernelFunc();
+}
+
+int main() {
+ kernel_single_task<class fake_kernel>([] { foo(); });
+ return 0;
+}
Index: clang/lib/Frontend/CompilerInvocation.cpp
===================================================================
--- clang/lib/Frontend/CompilerInvocation.cpp
+++ clang/lib/Frontend/CompilerInvocation.cpp
@@ -2882,7 +2882,8 @@
Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts);
Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) ||
- Args.hasArg(OPT_fconvergent_functions);
+ Opts.SYCLIsDevice ||
+ Args.hasArg(OPT_fconvergent_functions);
Opts.DoubleSquareBracketAttributes =
Args.hasFlag(OPT_fdouble_square_bracket_attributes,
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