1 files changed, 21 insertions, 0 deletions
diff --git a/libm/kvx/fesetround.c b/libm/kvx/fesetround.c
new file mode 100644
index 000000000..c1a24458e
--- /dev/null
+++ b/libm/kvx/fesetround.c
@@ -0,0 +1,21 @@
+/*
+  (C) Copyright 2019 Kalray S.A.
+  This file provides fesetround for the Coolidge processor.
+*/
+
+#include <fenv.h>
+
+int fesetround(int rounding_mode)
+{
+  /* Mask round to be sure only valid rounding bits are set */
+  rounding_mode &= FE_RND_MASK;
+
+  /* Set rounding mode bit-fields of $cs, with 'rounding_mode' as a
+     set mask and FE_RND_MASK as a clear mask. */
+  __builtin_kvx_wfxl(KVX_SFR_CS, ((long long)rounding_mode << 32) | FE_RND_MASK);
+
+  /* The above insn cannot fail (while the OS allows access to the
+     floating-point exception flags of the $cs register). Return
+     success. */
+  return 0;
+}