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-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_swizzle.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_swizzle.c b/src/gallium/auxiliary/gallivm/lp_bld_swizzle.c
index 79116bcf391..9557e1c10de 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_swizzle.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_swizzle.c
@@ -180,7 +180,8 @@ lp_build_swizzle_scalar_aos(struct lp_build_context *bld,
/* XXX: SSE3 has PSHUFB which should be better than bitmasks, but forcing
* using shuffles here actually causes worst results. More investigation is
* needed. */
- if (type.width >= 16) {
+ if (LLVMIsConstant(a) ||
+ type.width >= 16) {
/*
* Shuffle.
*/
@@ -398,7 +399,8 @@ lp_build_swizzle_aos(struct lp_build_context *bld,
}
}
- if (type.width >= 16) {
+ if (LLVMIsConstant(a) ||
+ type.width >= 16) {
/*
* Shuffle.
*/