From: Ian Romanick <ian.d.romanick@intel.com>
Date: Mon, 12 Aug 2019 22:47:35 +0000 (-0700)
Subject: nir/range-analysis: Fail gracefully on non-SSA sources
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f2965fde9b334ba5c8f7bbef9d5c25158cfb901d;p=mesa.git

nir/range-analysis: Fail gracefully on non-SSA sources

Tested-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
---

diff --git a/src/compiler/nir/nir_range_analysis.c b/src/compiler/nir/nir_range_analysis.c
index 7b908105b98..f9756ef080c 100644
--- a/src/compiler/nir/nir_range_analysis.c
+++ b/src/compiler/nir/nir_range_analysis.c
@@ -217,6 +217,9 @@ static struct ssa_result_range
 analyze_expression(const nir_alu_instr *instr, unsigned src,
                    struct hash_table *ht)
 {
+   if (!instr->src[src].src.is_ssa)
+      return (struct ssa_result_range){unknown, false};
+
    if (nir_src_is_const(instr->src[src].src))
       return analyze_constant(instr, src);