summaryrefslogtreecommitdiffstats
path: root/src/gallium/auxiliary/gallivm
diff options
context:
space:
mode:
authorJosé Fonseca <[email protected]>2010-04-27 14:27:24 +0100
committerJosé Fonseca <[email protected]>2010-04-27 14:27:24 +0100
commit992fc62d5998e62ad8aa4a9f1270254b886e9880 (patch)
treee44b0139cfb9c5a07ac76285cd36ba7798478358 /src/gallium/auxiliary/gallivm
parenta18c210a95794c79c6f26dbf4c66d4a85e29169d (diff)
gallivm: Disable llvm.cos.v4f32 and llvm.sin.v4f32 instrinsics on Windows.
Runtime linking doesn't quite work. Just comment then out for now to prevent crashes. These will go away in the future because calling 4 times CRT's cosf()/sinf() is over-precise and under-performing.
Diffstat (limited to 'src/gallium/auxiliary/gallivm')
-rw-r--r--src/gallium/auxiliary/gallivm/lp_bld_arit.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_arit.c b/src/gallium/auxiliary/gallivm/lp_bld_arit.c
index 5f9d4c62d1c..20ae958714b 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_arit.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_arit.c
@@ -1210,6 +1210,14 @@ LLVMValueRef
lp_build_cos(struct lp_build_context *bld,
LLVMValueRef a)
{
+#ifdef PIPE_OS_WINDOWS
+ /*
+ * FIXME: X86 backend translates llvm.cos.v4f32 to 4 calls to CRT's cosf()
+ * which is neither efficient nor does the CRT linkage work on Windows
+ * causing segmentation fault. So simply disable the code for now.
+ */
+ return bld->one;
+#else
const struct lp_type type = bld->type;
LLVMTypeRef vec_type = lp_build_vec_type(type);
char intrinsic[32];
@@ -1220,6 +1228,7 @@ lp_build_cos(struct lp_build_context *bld,
util_snprintf(intrinsic, sizeof intrinsic, "llvm.cos.v%uf%u", type.length, type.width);
return lp_build_intrinsic_unary(bld->builder, intrinsic, vec_type, a);
+#endif
}
@@ -1230,6 +1239,14 @@ LLVMValueRef
lp_build_sin(struct lp_build_context *bld,
LLVMValueRef a)
{
+#ifdef PIPE_OS_WINDOWS
+ /*
+ * FIXME: X86 backend translates llvm.sin.v4f32 to 4 calls to CRT's sinf()
+ * which is neither efficient nor does the CRT linkage work on Windows
+ * causing segmentation fault. So simply disable the code for now.
+ */
+ return bld->zero;
+#else
const struct lp_type type = bld->type;
LLVMTypeRef vec_type = lp_build_vec_type(type);
char intrinsic[32];
@@ -1240,6 +1257,7 @@ lp_build_sin(struct lp_build_context *bld,
util_snprintf(intrinsic, sizeof intrinsic, "llvm.sin.v%uf%u", type.length, type.width);
return lp_build_intrinsic_unary(bld->builder, intrinsic, vec_type, a);
+#endif
}