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Disable fp elim on mac64 #11955

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Merged
merged 1 commit into from
Jan 31, 2014
Merged

Disable fp elim on mac64 #11955

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6 changes: 5 additions & 1 deletion src/librustc/back/link.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,7 @@ pub mod write {
use lib::llvm::llvm;
use lib::llvm::{ModuleRef, TargetMachineRef, PassManagerRef};
use lib;
use syntax::abi;
use util::common::time;

use std::c_str::ToCStr;
Expand Down Expand Up @@ -129,7 +130,10 @@ pub mod write {
let use_softfp = sess.opts.debugging_opts & session::USE_SOFTFP != 0;

// FIXME: #11906: Omitting frame pointers breaks retrieving the value of a parameter.
let no_fp_elim = sess.opts.debuginfo;
// FIXME: #11954: mac64 unwinding may not work with fp elim
let no_fp_elim = sess.opts.debuginfo ||
(sess.targ_cfg.os == abi::OsMacos &&
sess.targ_cfg.arch == abi::X86_64);

let tm = sess.targ_cfg.target_strs.target_triple.with_c_str(|T| {
sess.opts.target_cpu.with_c_str(|CPU| {
Expand Down