Module: Mesa
Branch: master
Commit: 873789002f5d1c7c6c39231a8c8d541f4f61e65c
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=873789002f5d1c7c6c39231a8c8d541f4f61e65c

Author: Nicolai Hähnle <[email protected]>
Date:   Fri Jul 14 13:31:49 2017 +0200

radeonsi/gfx9: fix vertex idx in ES with multiple waves per threadgroup

Cc: [email protected]
Reviewed: Marek Olšák <[email protected]>

---

 src/gallium/drivers/radeonsi/si_shader.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_shader.c 
b/src/gallium/drivers/radeonsi/si_shader.c
index a5baf71b0d..a153cb7784 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -2879,7 +2879,12 @@ static void si_llvm_emit_es_epilogue(struct 
lp_build_tgsi_context *bld_base)
 
        if (ctx->screen->b.chip_class >= GFX9 && info->num_outputs) {
                unsigned itemsize_dw = es->selector->esgs_itemsize / 4;
-               lds_base = LLVMBuildMul(gallivm->builder, 
ac_get_thread_id(&ctx->ac),
+               LLVMValueRef vertex_idx = ac_get_thread_id(&ctx->ac);
+               LLVMValueRef wave_idx = unpack_param(ctx, 
ctx->param_merged_wave_info, 24, 4);
+               vertex_idx = LLVMBuildOr(gallivm->builder, vertex_idx,
+                                        LLVMBuildMul(gallivm->builder, 
wave_idx,
+                                                     LLVMConstInt(ctx->i32, 
64, false), ""), "");
+               lds_base = LLVMBuildMul(gallivm->builder, vertex_idx,
                                        LLVMConstInt(ctx->i32, itemsize_dw, 0), 
"");
        }
 

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