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authorDave Airlie <[email protected]>2012-02-17 19:02:21 +0000
committerDave Airlie <[email protected]>2012-02-28 10:42:17 +0000
commitaec11e4daa36fb31774971ce34f04e3ebeeeeed7 (patch)
tree7de363d6cfb5b19dbe691324a3f81029d7fd4649 /src/gallium/auxiliary
parent72931ca4b9fb1002f5b62b74f7f7f32e94e80fde (diff)
gallivm: add bitarit xor and not ops.
Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_bitarit.c44
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_bitarit.h5
2 files changed, 49 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c b/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
index a9c57d682f2..97ae1622c27 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_bitarit.c
@@ -62,6 +62,31 @@ lp_build_or(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
return res;
}
+/* bitwise XOR (a ^ b) */
+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 +146,25 @@ lp_build_andnot(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b)
return res;
}
+/* bitwise NOT */
+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.
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_bitarit.h b/src/gallium/auxiliary/gallivm/lp_bld_bitarit.h
index 5c5b9818519..29f5def9b58 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_bitarit.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_bitarit.h
@@ -48,6 +48,9 @@ LLVMValueRef
lp_build_or(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b);
LLVMValueRef
+lp_build_xor(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b);
+
+LLVMValueRef
lp_build_and(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b);
LLVMValueRef
@@ -65,5 +68,7 @@ lp_build_shl_imm(struct lp_build_context *bld, LLVMValueRef a, unsigned imm);
LLVMValueRef
lp_build_shr_imm(struct lp_build_context *bld, LLVMValueRef a, unsigned imm);
+LLVMValueRef
+lp_build_not(struct lp_build_context *bld, LLVMValueRef a);
#endif /* !LP_BLD_ARIT_H */