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-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_logic.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_logic.c b/src/gallium/auxiliary/gallivm/lp_bld_logic.c
index fa658953677..b7eb2c3d4e6 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_logic.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_logic.c
@@ -259,11 +259,13 @@ lp_build_compare(LLVMBuilderRef builder,
cond = LLVMBuildFCmp(builder, op, a, b, "");
res = LLVMBuildSExt(builder, cond, int_vec_type, "");
#else
- res = LLVMGetUndef(int_vec_type);
if (type.length == 1) {
- res = LLVMBuildFCmp(builder, op, a, b, "");
+ cond = LLVMBuildFCmp(builder, op, a, b, "");
+ res = LLVMBuildSExt(builder, cond, int_vec_type, "");
}
else {
+ res = LLVMGetUndef(int_vec_type);
+
debug_printf("%s: warning: using slow element-wise float"
" vector comparison\n", __FUNCTION__);
for (i = 0; i < type.length; ++i) {
@@ -311,11 +313,13 @@ lp_build_compare(LLVMBuilderRef builder,
cond = LLVMBuildICmp(builder, op, a, b, "");
res = LLVMBuildSExt(builder, cond, int_vec_type, "");
#else
- res = LLVMGetUndef(int_vec_type);
if (type.length == 1) {
- res = LLVMBuildICmp(builder, op, a, b, "");
+ cond = LLVMBuildICmp(builder, op, a, b, "");
+ res = LLVMBuildSExt(builder, cond, int_vec_type, "");
}
else {
+ res = LLVMGetUndef(int_vec_type);
+
debug_printf("%s: warning: using slow element-wise int"
" vector comparison\n", __FUNCTION__);
@@ -357,6 +361,8 @@ lp_build_cmp(struct lp_build_context *bld,
/**
* Return mask ? a : b;
+ *
+ * mask is a bitwise mask, composed of 0 or ~0 for each element.
*/
LLVMValueRef
lp_build_select(struct lp_build_context *bld,
@@ -371,6 +377,7 @@ lp_build_select(struct lp_build_context *bld,
return a;
if (type.length == 1) {
+ mask = LLVMBuildTrunc(bld->builder, mask, LLVMInt1Type(), "");
res = LLVMBuildSelect(bld->builder, mask, a, b, "");
}
else {