Categorize and explain target features support

2021-04-08 00:00:47 -05:00
parent 361bfce305
commit e258a5ba6e
3 changed files with 91 additions and 25 deletions
--- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
@@ -2128,7 +2128,13 @@ extern "C" {
    pub fn LLVMRustHasFeature(T: &TargetMachine, s: *const c_char) -> bool;

    pub fn LLVMRustPrintTargetCPUs(T: &TargetMachine);
-    pub fn LLVMRustPrintTargetFeatures(T: &TargetMachine);
+    pub fn LLVMRustGetTargetFeaturesCount(T: &TargetMachine) -> size_t;
+    pub fn LLVMRustGetTargetFeature(
+        T: &TargetMachine,
+        Index: size_t,
+        Feature: &mut *const c_char,
+        Desc: &mut *const c_char,
+    );

    pub fn LLVMRustGetHostCPUName(len: *mut usize) -> *const c_char;
    pub fn LLVMRustCreateTargetMachine(