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authorYan Chen <ychen2@futurewei.com>2022-08-08 16:58:27 -0700
committerYan Chen <ychen2@futurewei.com>2022-09-09 08:00:47 -0700
commit052887e4b4c86426423ecd6f244e3e25cd71dd49 (patch)
tree947937120338bbc19454a6e57f5f4045f4cfe5aa /compiler/rustc_codegen_llvm/src/attributes.rs
parent24d69920201563f0ee7b530f1cda0f171b205cc2 (diff)
downloadrust-052887e4b4c86426423ecd6f244e3e25cd71dd49.tar.gz
rust-052887e4b4c86426423ecd6f244e3e25cd71dd49.zip
Add inline-llvm option for disabling/enabling LLVM inlining
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/attributes.rs')
-rw-r--r--compiler/rustc_codegen_llvm/src/attributes.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs
index b38684a63e4..eff2436d41c 100644
--- a/compiler/rustc_codegen_llvm/src/attributes.rs
+++ b/compiler/rustc_codegen_llvm/src/attributes.rs
@@ -35,6 +35,10 @@ pub fn apply_to_callsite(callsite: &Value, idx: AttributePlace, attrs: &[&Attrib
 /// Get LLVM attribute for the provided inline heuristic.
 #[inline]
 fn inline_attr<'ll>(cx: &CodegenCx<'ll, '_>, inline: InlineAttr) -> Option<&'ll Attribute> {
+    if !cx.tcx.sess.opts.unstable_opts.inline_llvm {
+        // disable LLVM inlining
+        return Some(AttributeKind::NoInline.create_attr(cx.llcx));
+    }
     match inline {
         InlineAttr::Hint => Some(AttributeKind::InlineHint.create_attr(cx.llcx)),
         InlineAttr::Always => Some(AttributeKind::AlwaysInline.create_attr(cx.llcx)),