[ was: Re: [nvptx] vector length patch series ]
On 14-12-18 20:58, Tom de Vries wrote:
> 0005-nvptx-update-openacc-dim-macros.patch
Factored out this patch.
Committed.
Thanks,
- Tom
[nvptx] Add PTX_WARP_SIZE
Add PTX_WARP_SIZE constant and use it in nvptx_simt_vf. The function
nvptx_simt_vf is used for OpenMP, and using PTX_WARP_SIZE here decouples the
OpenMP support from the PTX_VECTOR_LENGTH constant used in OpenACC support.
Build and reg-tested on x86_64 with nvptx accelerator.
2018-12-17 Tom de Vries <tdevr...@suse.de>
* config/nvptx/nvptx.c (PTX_WARP_SIZE): Define.
(nvptx_simt_vf): Return PTX_WARP_SIZE instead of PTX_VECTOR_LENGTH.
---
gcc/config/nvptx/nvptx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c
index 01505899785..9906716890e 100644
--- a/gcc/config/nvptx/nvptx.c
+++ b/gcc/config/nvptx/nvptx.c
@@ -81,6 +81,8 @@
#define WORKAROUND_PTXJIT_BUG_2 1
#define WORKAROUND_PTXJIT_BUG_3 1
+#define PTX_WARP_SIZE 32
+
/* The various PTX memory areas an object might reside in. */
enum nvptx_data_area
{
@@ -5175,7 +5177,7 @@ nvptx_expand_builtin (tree exp, rtx target, rtx ARG_UNUSED (subtarget),
static int
nvptx_simt_vf ()
{
- return PTX_VECTOR_LENGTH;
+ return PTX_WARP_SIZE;
}
/* Validate compute dimensions of an OpenACC offload or routine, fill
