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| author | Alexander Monakov <amonakov@ispras.ru> | 2015-12-01 00:26:18 +0300 |
|---|---|---|
| committer | Alexander Monakov <amonakov@ispras.ru> | 2015-12-09 19:31:38 +0300 |
| commit | 61d1318e5c651450a8217a79b6361acd026a187a (patch) | |
| tree | f93be2c5bec4c16dd744edc32bcb0b8a1ce9c8af /gcc/config | |
| parent | f3b131836d906a35d914fac2b97d0ff75545a3ce (diff) | |
| download | gcc-61d1318e5c651450a8217a79b6361acd026a187a.tar.gz | |
nvptx backend: add -mgomp option and multilib
Since OpenMP offloading requires both soft-stacks and "uniform SIMT", both
non-traditional codegen variants, I'm building a multilib variant with those
enabled. This patch adds option -mgomp which enables -msoft-stack plus
-muniform-simt, and builds a multilib with it.
* config/nvptx/nvptx.c (nvptx_option_override): Handle TARGET_GOMP.
* config/nvptx/nvptx.opt (mgomp): New option.
* config/nvptx/t-nvptx (MULTILIB_OPTIONS): New.
* doc/invoke.texi (mgomp): Document.
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/nvptx/nvptx.c | 3 | ||||
| -rw-r--r-- | gcc/config/nvptx/nvptx.opt | 4 | ||||
| -rw-r--r-- | gcc/config/nvptx/t-nvptx | 2 |
3 files changed, 9 insertions, 0 deletions
diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c index 5abe962b4a6..c1afba3c370 100644 --- a/gcc/config/nvptx/nvptx.c +++ b/gcc/config/nvptx/nvptx.c @@ -185,6 +185,9 @@ nvptx_option_override (void) worker_red_sym = gen_rtx_SYMBOL_REF (Pmode, worker_red_name); SET_SYMBOL_DATA_AREA (worker_red_sym, DATA_AREA_SHARED); worker_red_align = GET_MODE_ALIGNMENT (SImode) / BITS_PER_UNIT; + + if (TARGET_GOMP) + target_flags |= MASK_SOFT_STACK | MASK_UNIFORM_SIMT; } /* Return a ptx type for MODE. If PROMOTE, then use .u32 for QImode to diff --git a/gcc/config/nvptx/nvptx.opt b/gcc/config/nvptx/nvptx.opt index f8508d80910..af599ae37f4 100644 --- a/gcc/config/nvptx/nvptx.opt +++ b/gcc/config/nvptx/nvptx.opt @@ -40,3 +40,7 @@ Use custom stacks instead of local memory for automatic storage. muniform-simt Target Report Mask(UNIFORM_SIMT) Generate code that executes all threads in a warp as if one was active. + +mgomp +Target Report Mask(GOMP) +Generate code for OpenMP offloading: enables -msoft-stack and -muniform-simt. diff --git a/gcc/config/nvptx/t-nvptx b/gcc/config/nvptx/t-nvptx index e2580c956e0..6c1010ddd66 100644 --- a/gcc/config/nvptx/t-nvptx +++ b/gcc/config/nvptx/t-nvptx @@ -8,3 +8,5 @@ ALL_HOST_OBJS += mkoffload.o mkoffload$(exeext): mkoffload.o collect-utils.o libcommon-target.a $(LIBIBERTY) $(LIBDEPS) +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \ mkoffload.o collect-utils.o libcommon-target.a $(LIBIBERTY) $(LIBS) + +MULTILIB_OPTIONS = mgomp |