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ac: add ac_build_s_barrier

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Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Marek Olšák 2018-08-13 23:59:28 -04:00
parent 6224144b6d
commit 2276f8f064
4 changed files with 9 additions and 5 deletions
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6
src/amd/common/ac_llvm_build.c
View file

@ -348,6 +348,12 @@ ac_build_phi(struct ac_llvm_context *ctx, LLVMTypeRef type,
return phi;
}
void ac_build_s_barrier(struct ac_llvm_context *ctx)
{
ac_build_intrinsic(ctx, "llvm.amdgcn.s.barrier", ctx->voidt, NULL,
0, AC_FUNC_ATTR_CONVERGENT);
}
/* Prevent optimizations (at least of memory accesses) across the current
* point in the program by emitting empty inline assembly that is marked as
* having side effects.

1
src/amd/common/ac_llvm_build.h
View file

@ -133,6 +133,7 @@ ac_build_phi(struct ac_llvm_context *ctx, LLVMTypeRef type,
unsigned count_incoming, LLVMValueRef *values,
LLVMBasicBlockRef *blocks);
void ac_build_s_barrier(struct ac_llvm_context *ctx);
void ac_build_optimization_barrier(struct ac_llvm_context *ctx,
LLVMValueRef *pvgpr);

3
src/amd/common/ac_nir_to_llvm.c
View file

@ -2582,8 +2582,7 @@ void ac_emit_barrier(struct ac_llvm_context *ac, gl_shader_stage stage)
ac_build_waitcnt(ac, LGKM_CNT & VM_CNT);
return;
}
ac_build_intrinsic(ac, "llvm.amdgcn.s.barrier",
ac->voidt, NULL, 0, AC_FUNC_ATTR_CONVERGENT);
ac_build_s_barrier(ac);
}
static void emit_discard(struct ac_nir_context *ctx,

4
src/gallium/drivers/radeonsi/si_shader.c
View file

@ -4404,9 +4404,7 @@ static void si_llvm_emit_barrier(const struct lp_build_tgsi_action *action,
return;
}
ac_build_intrinsic(&ctx->ac,
"llvm.amdgcn.s.barrier",
ctx->voidt, NULL, 0, AC_FUNC_ATTR_CONVERGENT);
ac_build_s_barrier(&ctx->ac);
}
static void si_create_function(struct si_shader_context *ctx,