[Openmp-commits] [PATCH] D139802: [OpenMP] Add LoongArch64 support in kmp_affinity.cpp

[Gong LingQin via Phabricator via Openmp-commits]

gonglingqin created this revision.
gonglingqin added reviewers: xen0n, xry111, SixWeining, wangleiat, MaskRay, XiaodongLoong.
Herald added subscribers: StephenFan, guansong, yaxunl.
Herald added a project: All.
gonglingqin requested review of this revision.
Herald added a reviewer: jdoerfert.
Herald added subscribers: openmp-commits, sstefan1.
Herald added a project: OpenMP.

This patch fixes test cases affinity/kmp-affinity.c,
affinity/kmp-hw-subset.c, and affinity/omp-places.c.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D139802

Files:
  openmp/runtime/src/kmp_affinity.cpp


Index: openmp/runtime/src/kmp_affinity.cpp
===================================================================
--- openmp/runtime/src/kmp_affinity.cpp
+++ openmp/runtime/src/kmp_affinity.cpp
@@ -2943,6 +2943,16 @@
       }
       (*line)++;
 
+#if KMP_ARCH_LOONGARCH64
+      // The parsing logic of /proc/cpuinfo in this function highly depends on
+      // the blank lines between each processor info block. But there is a
+      // disrupter on LoongArch that a blank line exists before the first
+      // processor info block (i.e. after the "system type" line). We must skip
+      // this line so that the original logic works on LoongArch.
+      if (*buf == '\n' && *line == 2)
+        continue;
+#endif
+
       char s1[] = "processor";
       if (strncmp(buf, s1, sizeof(s1) - 1) == 0) {
         CHECK_LINE;


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