On 02/17/2012 12:02 PM, Dave Airlie wrote:
From: Dave Airlie<[email protected]>
Signed-off-by: Dave Airlie<[email protected]>
---
src/gallium/auxiliary/gallivm/lp_bld_bitarit.c | 42 ++++++++++++++++++++++++
src/gallium/auxiliary/gallivm/lp_bld_bitarit.h | 5 +++
2 files changed, 47 insertions(+), 0 deletions(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
b/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
index a9c57d6..0a1ace1 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
@@ -62,6 +62,30 @@ lp_build_or(struct lp_build_context *bld, LLVMValueRef a,
LLVMValueRef b)
return res;
}
+LLVMValueRef
+lp_build_xor(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
+{
+ LLVMBuilderRef builder = bld->gallivm->builder;
+ const struct lp_type type = bld->type;
+ LLVMValueRef res;
+
+ assert(lp_check_value(type, a));
+ assert(lp_check_value(type, b));
+
+ /* can't do bitwise ops on floating-point values */
+ if (type.floating) {
+ a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
+ b = LLVMBuildBitCast(builder, b, bld->int_vec_type, "");
+ }
+
+ res = LLVMBuildXor(builder, a, b, "");
+
+ if (type.floating) {
+ res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
+ }
+
+ return res;
+}
/**
* Return (a& b)
@@ -121,6 +145,24 @@ lp_build_andnot(struct lp_build_context *bld, LLVMValueRef
a, LLVMValueRef b)
return res;
}
+LLVMValueRef
+lp_build_not(struct lp_build_context *bld, LLVMValueRef a)
+{
+ LLVMBuilderRef builder = bld->gallivm->builder;
+ const struct lp_type type = bld->type;
+ LLVMValueRef res;
+
+ assert(lp_check_value(type, a));
+
+ if (type.floating) {
+ a = LLVMBuildBitCast(builder, a, bld->int_vec_type, "");
+ }
+ res = LLVMBuildNot(builder, a, "");
+ if (type.floating) {
+ res = LLVMBuildBitCast(builder, res, bld->vec_type, "");
+ }
+ return res;
+}
/**
* Shift left.
Looks good, but would you mind adding comments to those function just
be clear about whether the operations are bitwise or logical?
-Brian
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