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authorRoland Scheidegger <[email protected]>2015-05-06 15:56:17 +0200
committerRoland Scheidegger <[email protected]>2015-05-06 16:51:09 +0200
commitb8a1495106a8b70e9026b7798a5df2fb9737c55e (patch)
treef0ef50c2f617066577f87dd8c3619372301f021d /src/gallium/auxiliary/draw
parent9891fc329b2d43c8433bec6d715b6b1684ea31c5 (diff)
draw: (trivial) fix out-of-bounds vector initialization
Was off-by-one. llvm says inserting an element with an index higher than the number of elements yields undefined results. Previously such inserts were ignored but as of llvm revision 235854 the vector gets replaced with undef, causing failures. This fixes piglit gl-3.2-layered-rendering-gl-layer, as mentioned in https://llvm.org/bugs/show_bug.cgi?id=23424. Reviewed-by: Brian Paul <[email protected]> Cc: [email protected]
Diffstat (limited to 'src/gallium/auxiliary/draw')
-rw-r--r--src/gallium/auxiliary/draw/draw_llvm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/draw/draw_llvm.c b/src/gallium/auxiliary/draw/draw_llvm.c
index 71506114dc3..b9e55af42c7 100644
--- a/src/gallium/auxiliary/draw/draw_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_llvm.c
@@ -2048,7 +2048,7 @@ generate_mask_value(struct draw_gs_llvm_variant *variant,
num_prims = lp_build_broadcast(gallivm, lp_build_vec_type(gallivm, mask_type),
variant->num_prims);
- for (i = 0; i <= gs_type.length; i++) {
+ for (i = 0; i < gs_type.length; i++) {
LLVMValueRef idx = lp_build_const_int32(gallivm, i);
mask_val = LLVMBuildInsertElement(builder, mask_val, idx, idx, "");
}