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-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_scan.c13
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_scan.h6
2 files changed, 19 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index ced9c94f468..90198a4f604 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -109,6 +109,19 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
info->input_usage_mask[ind] |= usage_mask;
}
}
+
+ /* check for indirect register reads */
+ if (src->Register.Indirect) {
+ info->indirect_files |= (1 << src->Register.File);
+ }
+ }
+
+ /* check for indirect register writes */
+ for (i = 0; i < fullinst->Instruction.NumDstRegs; i++) {
+ const struct tgsi_full_dst_register *dst = &fullinst->Dst[i];
+ if (dst->Register.Indirect) {
+ info->indirect_files |= (1 << dst->Register.File);
+ }
}
info->num_instructions++;
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h b/src/gallium/auxiliary/tgsi/tgsi_scan.h
index e75280336f0..f8aa90cf065 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
@@ -63,6 +63,12 @@ struct tgsi_shader_info
boolean writes_edgeflag; /**< vertex shader outputs edgeflag */
boolean uses_kill; /**< KIL or KILP instruction used? */
+ /**
+ * Bitmask indicating which register files are accessed with
+ * indirect addressing. The bits are (1 << TGSI_FILE_x), etc.
+ */
+ unsigned indirect_files;
+
struct {
unsigned name;
unsigned data[8];