From 39e68648c74b4d940f3df3edfd8a8e59b9f18963 Mon Sep 17 00:00:00 2001
From: Sebastian Pop <s.pop@samsung.com>
Date: Wed, 23 Jan 2019 13:15:33 -0600
Subject: cleanup: move code from arch/x86/crc_pclmulqdq.c to crc32.c

---
 CMakeLists.txt           |  2 +-
 Makefile.in              |  2 --
 arch/x86/Makefile.in     |  8 --------
 arch/x86/crc_pclmulqdq.c | 34 ----------------------------------
 configure                |  8 ++++----
 crc32.c                  | 24 ++++++++++++++++++++++--
 win32/Makefile.msc       |  2 +-
 7 files changed, 28 insertions(+), 52 deletions(-)
 delete mode 100644 arch/x86/crc_pclmulqdq.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b51f3f88f9..36ef939304 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -584,7 +584,7 @@ if(WITH_OPTIM)
         endif()
         if(HAVE_PCLMULQDQ_INTRIN)
             add_definitions(-DX86_PCLMULQDQ_CRC)
-            set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/crc_folding.c ${ARCHDIR}/crc_pclmulqdq.c)
+            set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/crc_folding.c)
             add_intrinsics_option("${PCLMULFLAG}")
             if(HAVE_SSE42_INTRIN)
                 add_feature_info(PCLMUL_CRC 1 "Support CRC hash generation using PCLMULQDQ, using \"${PCLMULFLAG}\"")
diff --git a/Makefile.in b/Makefile.in
index 0747ec8569..0f8155b629 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -393,7 +393,6 @@ arch/arm/crc32_acle.o: zconf$(SUFFIX).h
 arch/arm/fill_window_arm.o: $(SRCDIR)/deflate.h $(SRCDIR)/deflate_p.h $(SRCDIR)/functable.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/arm/insert_string_acle.o: $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/crc_folding.o: $(SRCDIR)/arch/x86/crc_folding.h $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
-arch/x86/crc_pclmulqdq.o: $(SRCDIR)/arch/x86/x86.h $(SRCDIR)/arch/x86/crc_folding.h $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/deflate_quick.o: $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/fill_window_sse.o: $(SRCDIR)/deflate.h $(SRCDIR)/deflate_p.h $(SRCDIR)/functable.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/x86.o: $(SRCDIR)/arch/x86/x86.h
@@ -422,7 +421,6 @@ arch/arm/crc32_acle.lo: zconf$(SUFFIX).h
 arch/arm/fill_window_arm.lo: $(SRCDIR)/deflate.h $(SRCDIR)/deflate_p.h $(SRCDIR)/functable.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/arm/insert_string_acle.lo: $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/crc_folding.lo: $(SRCDIR)/arch/x86/crc_folding.h $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
-arch/x86/crc_pclmulqdq.lo: $(SRCDIR)/arch/x86/x86.h $(SRCDIR)/arch/x86/crc_folding.h $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/deflate_quick.lo: $(SRCDIR)/deflate.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/fill_window_sse.lo: $(SRCDIR)/deflate.h $(SRCDIR)/deflate_p.h $(SRCDIR)/functable.h $(SRCDIR)/zutil.h $(SRCDIR)/zlib$(SUFFIX).h zconf$(SUFFIX).h
 arch/x86/x86.lo: $(SRCDIR)/arch/x86/x86.h
diff --git a/arch/x86/Makefile.in b/arch/x86/Makefile.in
index 7de12bf3b2..b041b087f4 100644
--- a/arch/x86/Makefile.in
+++ b/arch/x86/Makefile.in
@@ -48,12 +48,6 @@ crc_folding.o: $(SRCDIR)/crc_folding.c
 crc_folding.lo: $(SRCDIR)/crc_folding.c
 	$(CC) $(SFLAGS) $(PCLMULFLAG) $(SSE4FLAG) -DPIC $(INCLUDES) -c -o $@ $(SRCDIR)/crc_folding.c
 
-crc_pclmulqdq.o: $(SRCDIR)/crc_pclmulqdq.c
-	$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $(SRCDIR)/crc_pclmulqdq.c
-
-crc_pclmulqdq.lo: $(SRCDIR)/crc_pclmulqdq.c
-	$(CC) $(SFLAGS) -DPIC $(INCLUDES) -c -o $@ $(SRCDIR)/crc_pclmulqdq.c
-
 mostlyclean: clean
 clean:
 	rm -f *.o *.lo *~
@@ -72,13 +66,11 @@ depend:
 # DO NOT DELETE THIS LINE -- make depend depends on it.
 
 crc_folding.o: $(SRCDIR)/crc_folding.h $(SRCTOP)/deflate.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
-crc_pclmulqdq.o: $(SRCDIR)/x86.h $(SRCDIR)/crc_folding.h $(SRCTOP)/deflate.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
 deflate_quick.o: $(SRCTOP)/deflate.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
 fill_window_sse.o: $(SRCTOP)/deflate.h $(SRCTOP)/deflate_p.h $(SRCTOP)/functable.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
 x86.o: $(SRCDIR)/x86.h
 
 crc_folding.lo: $(SRCDIR)/crc_folding.h $(SRCTOP)/deflate.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
-crc_pclmulqdq.lo: $(SRCDIR)/x86.h $(SRCDIR)/crc_folding.h $(SRCTOP)/deflate.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
 deflate_quick.lo: $(SRCTOP)/deflate.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
 fill_window_sse.lo: $(SRCTOP)/deflate.h $(SRCTOP)/deflate_p.h $(SRCTOP)/functable.h $(SRCTOP)/zutil.h $(SRCTOP)/zlib$(SUFFIX).h $(TOPDIR)/zconf$(SUFFIX).h
 x86.lo: $(SRCDIR)/x86.h
diff --git a/arch/x86/crc_pclmulqdq.c b/arch/x86/crc_pclmulqdq.c
deleted file mode 100644
index 0c2896a000..0000000000
--- a/arch/x86/crc_pclmulqdq.c
+++ /dev/null
@@ -1,34 +0,0 @@
-/* crc_pclmulqdq.c -- compute the CRC-32 of a data stream
- * Copyright (C) 1995-2006, 2010, 2011, 2012 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- *
- */
-
-#include "zbuild.h"
-#include "x86.h"
-#include "crc_folding.h"
-#include "deflate.h"
-
-#ifdef X86_PCLMULQDQ_CRC
-ZLIB_INTERNAL void crc_reset(deflate_state *const s) {
-    if (x86_cpu_has_pclmulqdq) {
-        crc_fold_init(s);
-        return;
-    }
-    s->strm->adler = PREFIX(crc32)(0L, NULL, 0);
-}
-
-ZLIB_INTERNAL void crc_finalize(deflate_state *const s) {
-    if (x86_cpu_has_pclmulqdq)
-        s->strm->adler = crc_fold_512to32(s);
-}
-
-ZLIB_INTERNAL void copy_with_crc(PREFIX3(stream) *strm, unsigned char *dst, unsigned long size) {
-    if (x86_cpu_has_pclmulqdq) {
-        crc_fold_copy(strm->state, dst, strm->next_in, size);
-        return;
-    }
-    memcpy(dst, strm->next_in, size);
-    strm->adler = PREFIX(crc32)(strm->adler, dst, size);
-}
-#endif
diff --git a/configure b/configure
index f006c644f2..7725476d97 100755
--- a/configure
+++ b/configure
@@ -1003,8 +1003,8 @@ case "${ARCH}" in
             if test ${HAVE_PCLMULQDQ_INTRIN} -eq 1; then
                 CFLAGS="${CFLAGS} -DX86_PCLMULQDQ_CRC"
                 SFLAGS="${SFLAGS} -DX86_PCLMULQDQ_CRC"
-                ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} crc_folding.o crc_pclmulqdq.o"
-                ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} crc_folding.lo crc_pclmulqdq.lo"
+                ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} crc_folding.o"
+                ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} crc_folding.lo"
             fi
 
         fi
@@ -1033,8 +1033,8 @@ case "${ARCH}" in
             if test ${HAVE_PCLMULQDQ_INTRIN} -eq 1; then
                 CFLAGS="${CFLAGS} -DX86_PCLMULQDQ_CRC"
                 SFLAGS="${SFLAGS} -DX86_PCLMULQDQ_CRC"
-                ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} crc_folding.o crc_pclmulqdq.o"
-                ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} crc_folding.lo crc_pclmulqdq.lo"
+                ARCH_STATIC_OBJS="${ARCH_STATIC_OBJS} crc_folding.o"
+                ARCH_SHARED_OBJS="${ARCH_SHARED_OBJS} crc_folding.lo"
             fi
 
             # Enable deflate_quick at level 1?
diff --git a/crc32.c b/crc32.c
index 33e82d34c0..ddc2e12dc7 100644
--- a/crc32.c
+++ b/crc32.c
@@ -400,16 +400,36 @@ uint32_t ZEXPORT PREFIX(crc32_combine64)(uint32_t crc1, uint32_t crc2, z_off64_t
     return crc32_combine_(crc1, crc2, len2);
 }
 
-#ifndef X86_PCLMULQDQ_CRC
+#ifdef X86_PCLMULQDQ_CRC
+#include "arch/x86/x86.h"
+#include "arch/x86/crc_folding.h"
+
+ZLIB_INTERNAL void crc_finalize(deflate_state *const s) {
+    if (x86_cpu_has_pclmulqdq)
+        s->strm->adler = crc_fold_512to32(s);
+}
+#endif
+
 ZLIB_INTERNAL void crc_reset(deflate_state *const s) {
+#ifdef X86_PCLMULQDQ_CRC
+    if (x86_cpu_has_pclmulqdq) {
+        crc_fold_init(s);
+        return;
+    }
+#endif
     s->strm->adler = PREFIX(crc32)(0L, NULL, 0);
 }
 
 ZLIB_INTERNAL void copy_with_crc(PREFIX3(stream) *strm, unsigned char *dst, unsigned long size) {
+#ifdef X86_PCLMULQDQ_CRC
+    if (x86_cpu_has_pclmulqdq) {
+        crc_fold_copy(strm->state, dst, strm->next_in, size);
+        return;
+    }
+#endif
     memcpy(dst, strm->next_in, size);
     strm->adler = PREFIX(crc32)(strm->adler, dst, size);
 }
-#endif
 
 /* ========================================================================= */
 static void crc32_combine_gen_(uint32_t *op, z_off64_t len2)
diff --git a/win32/Makefile.msc b/win32/Makefile.msc
index a99099e5e0..36e9ea6be1 100644
--- a/win32/Makefile.msc
+++ b/win32/Makefile.msc
@@ -36,7 +36,7 @@ SUFFIX =
 
 OBJS = adler32.obj compress.obj crc32.obj deflate.obj deflate_fast.obj deflate_quick.obj deflate_slow.obj \
        functable.obj infback.obj inflate.obj inftrees.obj inffast.obj trees.obj uncompr.obj zutil.obj \
-       x86.obj fill_window_sse.obj insert_string_sse.obj crc_folding.obj crc_pclmulqdq.obj
+       x86.obj fill_window_sse.obj insert_string_sse.obj crc_folding.obj
 !if "$(ZLIB_COMPAT)" != ""
 WITH_GZFILEOP = yes
 WFLAGS = $(WFLAGS) -DZLIB_COMPAT
-- 
cgit 0.0.5-2-1-g0f52