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-rw-r--r--ChangeLog9
-rw-r--r--sysdeps/x86_64/dl-trampoline.S3
-rw-r--r--sysdeps/x86_64/dl-trampoline.h9
3 files changed, 15 insertions, 6 deletions
diff --git a/ChangeLog b/ChangeLog
index 9047f652fe..6e4696c7df 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2017-04-07  H.J. Lu  <hongjiu.lu@intel.com>
+
+	[BZ #21258]
+	* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve_opt):
+	Define only if _dl_runtime_resolve is defined to
+	_dl_runtime_resolve_sse_vex.
+	* sysdeps/x86_64/dl-trampoline.h (_dl_runtime_resolve_opt):
+	Fallthrough to _dl_runtime_resolve_sse_vex.
+
 2017-04-03  Mike Frysinger  <vapier@gentoo.org>
 
 	[BZ #21253]
diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S
index 39f595e1e1..50b23633e3 100644
--- a/sysdeps/x86_64/dl-trampoline.S
+++ b/sysdeps/x86_64/dl-trampoline.S
@@ -87,11 +87,9 @@
 #endif
 #define VEC(i)			zmm##i
 #define _dl_runtime_resolve	_dl_runtime_resolve_avx512
-#define _dl_runtime_resolve_opt	_dl_runtime_resolve_avx512_opt
 #define _dl_runtime_profile	_dl_runtime_profile_avx512
 #include "dl-trampoline.h"
 #undef _dl_runtime_resolve
-#undef _dl_runtime_resolve_opt
 #undef _dl_runtime_profile
 #undef VEC
 #undef VMOV
@@ -145,4 +143,5 @@
 # define VMOV			vmovdqu
 #endif
 #define _dl_runtime_resolve	_dl_runtime_resolve_sse_vex
+#define _dl_runtime_resolve_opt	_dl_runtime_resolve_avx512_opt
 #include "dl-trampoline.h"
diff --git a/sysdeps/x86_64/dl-trampoline.h b/sysdeps/x86_64/dl-trampoline.h
index abe4471c1d..32ad3af202 100644
--- a/sysdeps/x86_64/dl-trampoline.h
+++ b/sysdeps/x86_64/dl-trampoline.h
@@ -129,19 +129,20 @@ _dl_runtime_resolve_opt:
 	# YMM state isn't in use.
 	PRESERVE_BND_REGS_PREFIX
 	jz _dl_runtime_resolve_sse_vex
-# elif VEC_SIZE == 64
+# elif VEC_SIZE == 16
 	# For ZMM registers, check if YMM state and ZMM state are in
 	# use.
 	andl $(bit_YMM_state | bit_ZMM0_15_state), %r11d
 	cmpl $bit_YMM_state, %r11d
-	# Preserve %xmm0 - %xmm7 registers with the zero upper 384 bits if
-	# neither YMM state nor ZMM state are in use.
+	# Preserve %zmm0 - %zmm7 registers if ZMM state is in use.
 	PRESERVE_BND_REGS_PREFIX
-	jl _dl_runtime_resolve_sse_vex
+	jg _dl_runtime_resolve_avx512
 	# Preserve %ymm0 - %ymm7 registers with the zero upper 256 bits if
 	# ZMM state isn't in use.
 	PRESERVE_BND_REGS_PREFIX
 	je _dl_runtime_resolve_avx
+	# Preserve %xmm0 - %xmm7 registers with the zero upper 384 bits if
+	# neither YMM state nor ZMM state are in use.
 # else
 #  error Unsupported VEC_SIZE!
 # endif