| Message ID | 1468580862-2309-1-git-send-email-damien.lespiau@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Jul 15, 2016 at 12:07:42PM +0100, Damien Lespiau wrote: > Depending how the gcc was compiled it may be necessary to enable SSE4 > instructions explicitly. Otherwise: > > CC gem_gtt_speed.o > In file included from gem_gtt_speed.c:54:0: > /usr/lib/gcc/x86_64-linux-gnu/4.8/include/smmintrin.h:31:3: error: #error "SSE4.1 instruction set not enabled" > # error "SSE4.1 instruction set not enabled" > ^ > > v2: Use a pragma directive (Chris) > > Cc: Chris Wilson <chris@chris-wilson.co.uk> > Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> > --- > tests/gem_exec_flush.c | 1 + > tests/gem_gtt_speed.c | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/tests/gem_exec_flush.c b/tests/gem_exec_flush.c > index c81a977..b43d511 100644 > --- a/tests/gem_exec_flush.c > +++ b/tests/gem_exec_flush.c > @@ -41,6 +41,7 @@ IGT_TEST_DESCRIPTION("Basic check of flushing after batches"); > #define MOVNT 512 > > #if defined(__x86_64__) > +#pragma GCC target ("sse4.1") I jumped ahead and did #pragma GCC push_options #pragma GCC target ("sse4.1") .. #pragma GCC pop_options Compiling with gcc 4.2 or even older will be fixed whenever... -Chris
diff --git a/tests/gem_exec_flush.c b/tests/gem_exec_flush.c index c81a977..b43d511 100644 --- a/tests/gem_exec_flush.c +++ b/tests/gem_exec_flush.c @@ -41,6 +41,7 @@ IGT_TEST_DESCRIPTION("Basic check of flushing after batches"); #define MOVNT 512 #if defined(__x86_64__) +#pragma GCC target ("sse4.1") #include <smmintrin.h> __attribute__((noinline)) __attribute__((target("sse4.1"))) diff --git a/tests/gem_gtt_speed.c b/tests/gem_gtt_speed.c index 94b3de3..ed8cfda 100644 --- a/tests/gem_gtt_speed.c +++ b/tests/gem_gtt_speed.c @@ -51,6 +51,7 @@ static double elapsed(const struct timeval *start, } #if defined(__x86_64__) +#pragma GCC target ("sse4.1") #include <smmintrin.h> __attribute__((noinline)) __attribute__((target("sse4.1")))
Depending how the gcc was compiled it may be necessary to enable SSE4 instructions explicitly. Otherwise: CC gem_gtt_speed.o In file included from gem_gtt_speed.c:54:0: /usr/lib/gcc/x86_64-linux-gnu/4.8/include/smmintrin.h:31:3: error: #error "SSE4.1 instruction set not enabled" # error "SSE4.1 instruction set not enabled" ^ v2: Use a pragma directive (Chris) Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> --- tests/gem_exec_flush.c | 1 + tests/gem_gtt_speed.c | 1 + 2 files changed, 2 insertions(+)