From cf1daafa3f9d5aeff5c7a52c8f2b0e97ea355662 Mon Sep 17 00:00:00 2001 From: Simon McVittie Date: Mon, 9 May 2022 18:48:46 +0100 Subject: [PATCH] cpuinfo: Set padding to 0 if none is needed It'll be simpler to use overflow detection after this refactor. Signed-off-by: Simon McVittie --- src/cpuinfo/SDL_cpuinfo.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/cpuinfo/SDL_cpuinfo.c b/src/cpuinfo/SDL_cpuinfo.c index babbb816c..53b6366d0 100644 --- a/src/cpuinfo/SDL_cpuinfo.c +++ b/src/cpuinfo/SDL_cpuinfo.c @@ -1058,8 +1058,8 @@ void * SDL_SIMDAlloc(const size_t len) { const size_t alignment = SDL_SIMDGetAlignment(); - const size_t padding = alignment - (len % alignment); - const size_t padded = (padding != alignment) ? (len + padding) : len; + const size_t padding = (alignment - (len % alignment)) % alignment; + const size_t padded = len + padding; Uint8 *retval = NULL; Uint8 *ptr = (Uint8 *) SDL_malloc(padded + alignment + sizeof (void *)); if (ptr) { @@ -1075,8 +1075,8 @@ void * SDL_SIMDRealloc(void *mem, const size_t len) { const size_t alignment = SDL_SIMDGetAlignment(); - const size_t padding = alignment - (len % alignment); - const size_t padded = (padding != alignment) ? (len + padding) : len; + const size_t padding = (alignment - (len % alignment)) % alignment; + const size_t padded = len + padding; Uint8 *retval = (Uint8*) mem; void *oldmem = mem; size_t memdiff = 0, ptrdiff;