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-rw-r--r--src/glsl/nir/nir_opt_cse.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/glsl/nir/nir_opt_cse.c b/src/glsl/nir/nir_opt_cse.c
index a33ebdd9981..fef167816ab 100644
--- a/src/glsl/nir/nir_opt_cse.c
+++ b/src/glsl/nir/nir_opt_cse.c
@@ -139,12 +139,16 @@ dest_is_ssa(nir_dest *dest, void *data)
static bool
nir_instr_can_cse(nir_instr *instr)
{
+ /* We only handle SSA. */
+ if (!nir_foreach_dest(instr, dest_is_ssa, NULL) ||
+ !nir_foreach_src(instr, src_is_ssa, NULL))
+ return false;
+
switch (instr->type) {
case nir_instr_type_alu:
case nir_instr_type_load_const:
case nir_instr_type_phi:
- return nir_foreach_dest(instr, dest_is_ssa, NULL) &&
- nir_foreach_src(instr, src_is_ssa, NULL);
+ return true;
case nir_instr_type_tex:
return false; /* TODO */
case nir_instr_type_intrinsic: