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authorStefan Liebler <stli@linux.ibm.com>2019-12-11 15:09:22 +0100
committerStefan Liebler <stli@linux.ibm.com>2019-12-11 15:12:17 +0100
commit1ac9c1cf87216bf9f8ac4f7c9754d025d9f2c4ae (patch)
tree8c87cea663ef68ef46470f8d96a0c0c833062428 /sysdeps/generic
parent62560ee84095274bab1050817f42e782df226a17 (diff)
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Use GCC builtins for trunc functions if desired.
This patch is using the corresponding GCC builtin for truncf, trunc,
truncl and truncf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins.h.

This is the case for s390 if build with at least --march=z196 --mzarch.
Otherwise the generic implementation is used.  The code of the generic
implementation is not changed.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/generic')
-rw-r--r--sysdeps/generic/math-use-builtins.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/sysdeps/generic/math-use-builtins.h b/sysdeps/generic/math-use-builtins.h
index 076ec661b0..ab379f45ba 100644
--- a/sysdeps/generic/math-use-builtins.h
+++ b/sysdeps/generic/math-use-builtins.h
@@ -41,4 +41,9 @@
 #define USE_CEILL_BUILTIN 0
 #define USE_CEILF128_BUILTIN 0
 
+#define USE_TRUNC_BUILTIN 0
+#define USE_TRUNCF_BUILTIN 0
+#define USE_TRUNCL_BUILTIN 0
+#define USE_TRUNCF128_BUILTIN 0
+
 #endif /* math-use-builtins.h */