Fall back to selection DAG isel for calls to builtin functions.
Fast isel doesn't currently have support for translating builtin function
calls to target instructions. For embedded environments where the library
functions are not available, this is a matter of correctness and not
just optimization. Most of this patch is just arranging to make the
TargetLibraryInfo available in fast isel. <rdar://problem/12008746>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161232 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp
index 1e97fe7..72ff4e8 100644
--- a/lib/Target/X86/X86FastISel.cpp
+++ b/lib/Target/X86/X86FastISel.cpp
@@ -57,7 +57,9 @@
bool X86ScalarSSEf32;
public:
- explicit X86FastISel(FunctionLoweringInfo &funcInfo) : FastISel(funcInfo) {
+ explicit X86FastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo)
+ : FastISel(funcInfo, libInfo) {
Subtarget = &TM.getSubtarget<X86Subtarget>();
StackPtr = Subtarget->is64Bit() ? X86::RSP : X86::ESP;
X86ScalarSSEf64 = Subtarget->hasSSE2();
@@ -2199,7 +2201,8 @@
namespace llvm {
- FastISel *X86::createFastISel(FunctionLoweringInfo &funcInfo) {
- return new X86FastISel(funcInfo);
+ FastISel *X86::createFastISel(FunctionLoweringInfo &funcInfo,
+ const TargetLibraryInfo *libInfo) {
+ return new X86FastISel(funcInfo, libInfo);
}
}