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Fix narrowing function tests build for powerpc64le [committed]

Testing narrowing functions with showed up a
further testsuite fix needed to enable building such functions for
powerpc64le: tests test-<narrower-type>-float128-<function> (and
likewise for float64x) needed the same special handling for
powerpc64le as test-float128-* and test-float64x-*.  This patch adds
that special handling.

Tested with for powerpc64le in conjunction with
the main patch adding narrowing add functions.  Committed.

2018-02-10  Joseph Myers  <>

	* sysdeps/powerpc/powerpc64le/Makefile [$(subdir) = math]
	(f128-pairs): New variable.
	[$(subdir) = math] ($(foreach suf,$(all-object-suffixes),$(foreach
	pair,$(f128-pairs),$(objpfx)test-$(pair)%$(suf)))): Add -mfloat128
	[$(subdir) = math] ($(foreach pair,$(f128-pairs),test-$(pair)%)):
	Also make tests add $(f128-loader-link) to gnulib-tests.

diff --git a/sysdeps/powerpc/powerpc64le/Makefile b/sysdeps/powerpc/powerpc64le/Makefile
index 01957b4..14d39e2 100644
--- a/sysdeps/powerpc/powerpc64le/Makefile
+++ b/sysdeps/powerpc/powerpc64le/Makefile
@@ -17,6 +17,11 @@ $(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += -
 $(foreach suf,$(all-object-suffixes),$(objpfx)test-float64x%$(suf)): CFLAGS += -mfloat128
 $(foreach suf,$(all-object-suffixes),$(objpfx)test-ifloat128%$(suf)): CFLAGS += -mfloat128
 $(foreach suf,$(all-object-suffixes),$(objpfx)test-ifloat64x%$(suf)): CFLAGS += -mfloat128
+# Pairs of types with _Float128 / _Float64x as the wider type but not
+# the narrower one.
+f128-pairs = float32-float64x float32-float128 float64-float64x \
+	     float64-float128 float32x-float64x float32x-float128
+$(foreach suf,$(all-object-suffixes),$(foreach pair,$(f128-pairs),$(objpfx)test-$(pair)%$(suf))): CFLAGS += -mfloat128
 CFLAGS-libm-test-support-float128.c += -mfloat128
 CFLAGS-libm-test-support-float64x.c += -mfloat128 += -mfloat128
@@ -25,6 +30,7 @@ += -mfloat128 += -mfloat128
 $(foreach test, \
 	  test-float128% test-ifloat128% test-float64x% test-ifloat64x% \
+	  $(foreach pair,$(f128-pairs),test-$(pair)%) \
 	  test-math-iscanonical test-math-iseqsig test-math-issignaling \
 	  test-math-iszero, \
 	  $(objpfx)$(test)): \

Joseph S. Myers

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