Disable gcc's built-in rint() function when compiling s_nearbyint.c.
It results in incorrect optimizations that break nearbyint(). PR: 143358 Reviewed by: bde
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=216137
@ -113,6 +113,12 @@ COMMON_SRCS:= ${COMMON_SRCS:N${i:R}.c}
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.endfor
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.endif
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# Some files need certain gcc built-in functions to be disabled, since gcc's
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# model of the functions bogusly assumes -fno-trapping-math.
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XRINT_CFLAGS= -fno-builtin-rint -fno-builtin-rintf -fno-builtin-rintl
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CFLAGS+= ${XRINT_CFLAGS}
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XRINT_CFLAGS:= ${.IMPSRC:M*/s_nearbyint.c:C/^.+$/${XRINT_CFLAGS}/:C/^$//}
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SRCS= ${COMMON_SRCS} ${ARCH_SRCS}
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INCS= fenv.h math.h
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