[PATCH v3 5/5] pcm_dmix assembly: give more freedom over the constraints

[frederic.recoules at univ-grenoble-alpes.fr]

From: Frédéric Recoules <frederic.recoules at orange.fr>

Minor changes that could help the compiler to produce a
better (smaller/faster) code.

Signed-off-by: Frédéric Recoules <frederic.recoules at orange.fr>
---
 src/pcm/pcm_dmix_i386.h   | 30 +++++++++++++++---------------
 src/pcm/pcm_dmix_x86_64.h | 18 +++++++++---------
 2 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/src/pcm/pcm_dmix_i386.h b/src/pcm/pcm_dmix_i386.h
index bd1d6644..8dcba3d8 100644
--- a/src/pcm/pcm_dmix_i386.h
+++ b/src/pcm/pcm_dmix_i386.h
@@ -149,13 +149,13 @@ static void MIX_AREAS_16(unsigned int size,
 #ifdef BOUNDED_EBX
 		"\tmovl %[old_ebx], %%ebx\n"	/* ebx is GOT pointer (-fPIC) */
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_EBX
 		  , [old_ebx] "=m" (old_ebx)
 #endif
 		: [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "esi", "edi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_EBX
 		  , "ebx"
@@ -248,13 +248,13 @@ static void MIX_AREAS_16_MMX(unsigned int size,
 #ifdef BOUNDED_EBX
 		"\tmovl %[old_ebx], %%ebx\n"	/* ebx is GOT pointer (-fPIC) */
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_EBX
 		  , [old_ebx] "=m" (old_ebx)
 #endif
 		: [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "esi", "edi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_EBX
 		  , "ebx"
@@ -376,13 +376,13 @@ static void MIX_AREAS_32(unsigned int size,
 #ifdef BOUNDED_EBX
 		"\tmovl %[old_ebx], %%ebx\n"	/* ebx is GOT pointer (-fPIC) */
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_EBX
 		  , [old_ebx] "=m" (old_ebx)
 #endif
 		: [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "esi", "edi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_EBX
 		  , "ebx"
@@ -491,13 +491,13 @@ static void MIX_AREAS_24(unsigned int size,
 #ifdef BOUNDED_EBX
 		"\tmovl %[old_ebx], %%ebx\n"	/* ebx is GOT pointer (-fPIC) */
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_EBX
 		  , [old_ebx] "=m" (old_ebx)
 #endif
 		: [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "esi", "edi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_EBX
 		  , "ebx"
@@ -599,13 +599,13 @@ static void MIX_AREAS_24_CMOV(unsigned int size,
 #ifdef BOUNDED_EBX
 		"\tmovl %[old_ebx], %%ebx\n"	/* ebx is GOT pointer (-fPIC) */
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_EBX
 		  , [old_ebx] "=m" (old_ebx)
 #endif
 		: [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "esi", "edi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_EBX
 		  , "ebx"
diff --git a/src/pcm/pcm_dmix_x86_64.h b/src/pcm/pcm_dmix_x86_64.h
index fff07529..aef5d90c 100644
--- a/src/pcm/pcm_dmix_x86_64.h
+++ b/src/pcm/pcm_dmix_x86_64.h
@@ -121,13 +121,13 @@ static void MIX_AREAS_16(unsigned int size,
 #ifdef BOUNDED_RBX
 		"\tmovq %[old_rbx], %%rbx\n"
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_RBX
 		  , [old_rbx] "=m" (old_rbx)
 #endif
 	        : [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "rsi", "rdi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_RBX
 		  , "rbx"
@@ -251,13 +251,13 @@ static void MIX_AREAS_32(unsigned int size,
 #ifdef BOUNDED_RBX
 		"\tmovq %[old_rbx], %%rbx\n"
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_RBX
 		  , [old_rbx] "=m" (old_rbx)
 #endif
 	        : [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "rsi", "rdi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_RBX
 		  , "rbx"
@@ -363,13 +363,13 @@ static void MIX_AREAS_24(unsigned int size,
 #ifdef BOUNDED_RBX
 		"\tmovq %[old_rbx], %%rbx\n"
 #endif
-		: [size] "+m" (size)
+		: [size] "+&rm" (size)
 #ifdef BOUNDED_RBX
 		  , [old_rbx] "=m" (old_rbx)
 #endif
 	        : [dst] "m" (dst), [src] "m" (src), [sum] "m" (sum),
-		  [dst_step] "m" (dst_step),  [src_step] "m" (src_step),
-		  [sum_step] "m" (sum_step)
+		  [dst_step] "im" (dst_step),  [src_step] "im" (src_step),
+		  [sum_step] "im" (sum_step)
 		: "rsi", "rdi", "edx", "ecx", "eax", "memory", "cc"
 #ifndef BOUNDED_RBX
 		  , "rbx"
-- 
2.17.1