[Openmp-commits] [PATCH] D95986: [OpenMP][deviceRTLs] Drop `assert` in common parts of `deviceRTLs`

Shilei Tian via Phabricator via Openmp-commits openmp-commits at lists.llvm.org
Wed Feb 3 16:43:33 PST 2021

tianshilei1992 created this revision.
tianshilei1992 added reviewers: jdoerfert, JonChesterfield.
Herald added subscribers: guansong, yaxunl.
tianshilei1992 requested review of this revision.
Herald added subscribers: openmp-commits, sstefan1.
Herald added a project: OpenMP.

The header `assert.h` needs to be included in order to use `assert` in
the code. When building NVPTX `deviceRTLs` on a CUDA free system, it requires
headers from `gcc-multilib`, which some systems don't have. This patch drops the
use of `assert` in common parts of `deviceRTLs`. In light of
`openmp/libomptarget/deviceRTLs/amdgcn/src/target_impl.h`, a code block

  if (!cond)

is being used.

  rG LLVM Github Monorepo



Index: openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h
--- openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h
+++ openmp/libomptarget/deviceRTLs/nvptx/src/target_impl.h
@@ -12,7 +12,6 @@
 #ifndef _TARGET_IMPL_H_
 #define _TARGET_IMPL_H_
-#include <assert.h>
 #include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
Index: openmp/libomptarget/deviceRTLs/common/debug.h
--- openmp/libomptarget/deviceRTLs/common/debug.h
+++ openmp/libomptarget/deviceRTLs/common/debug.h
@@ -142,13 +142,17 @@
 template <typename... Arguments>
 NOINLINE static void check(bool cond, const char *fmt,
                            Arguments... parameters) {
-  if (!cond)
+  if (!cond) {
     printf(fmt, (int)GetBlockIdInKernel(), (int)GetThreadIdInBlock(),
            (int)GetWarpId(), (int)GetLaneId(), parameters...);
-  assert(cond);
+    __builtin_trap();
+  }
-NOINLINE static void check(bool cond) { assert(cond); }
+NOINLINE static void check(bool cond) {
+  if (!cond)
+    __builtin_trap();
 // set flags that are tested (inclusion properties)

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