[Clang] Replace cc1 options '-mdisable-fp-elim' and '-momit-leaf-frame-pointer'
with '-mframe-pointer'
After D56351 and D64294, frame pointer handling is migrated to tri-state
(all, non-leaf, none) in clang driver and on the function attribute.
This patch makes the frame pointer handling cc1 option tri-state.
Reviewers: chandlerc, rnk, t.p.northover, MaskRay
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D56353
llvm-svn: 366645
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 5f1fb10..890bf2b 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -1713,16 +1713,19 @@
if (!CodeGenOpts.TrapFuncName.empty())
FuncAttrs.addAttribute("trap-func-name", CodeGenOpts.TrapFuncName);
} else {
- // Attributes that should go on the function, but not the call site.
- if (!CodeGenOpts.DisableFPElim) {
- FuncAttrs.addAttribute("no-frame-pointer-elim", "false");
- } else if (CodeGenOpts.OmitLeafFramePointer) {
- FuncAttrs.addAttribute("no-frame-pointer-elim", "false");
- FuncAttrs.addAttribute("no-frame-pointer-elim-non-leaf");
- } else {
- FuncAttrs.addAttribute("no-frame-pointer-elim", "true");
- FuncAttrs.addAttribute("no-frame-pointer-elim-non-leaf");
+ StringRef FpKind;
+ switch (CodeGenOpts.getFramePointer()) {
+ case CodeGenOptions::FramePointerKind::None:
+ FpKind = "none";
+ break;
+ case CodeGenOptions::FramePointerKind::NonLeaf:
+ FpKind = "non-leaf";
+ break;
+ case CodeGenOptions::FramePointerKind::All:
+ FpKind = "all";
+ break;
}
+ FuncAttrs.addAttribute("frame-pointer", FpKind);
FuncAttrs.addAttribute("less-precise-fpmad",
llvm::toStringRef(CodeGenOpts.LessPreciseFPMAD));