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Fix closure debuginfo.

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This commit is contained in:
Austin Hicks 2016-12-19 21:14:27 -05:00
parent 3f9823d5f5
commit e1d8806efd
1 changed files with 9 additions and 5 deletions
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14
src/librustc_trans/mir/mod.rs
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@ -10,14 +10,13 @@
use libc::c_uint;
use llvm::{self, ValueRef};
use rustc::ty;
use rustc::ty::{self, layout};
use rustc::mir;
use rustc::mir::tcx::LvalueTy;
use session::config::FullDebugInfo;
use base;
use common::{self, Block, BlockAndBuilder, CrateContext, FunctionContext, C_null};
use debuginfo::{self, declare_local, DebugLoc, VariableAccess, VariableKind, FunctionDebugContext};
use machine;
use type_of;
use syntax_pos::{DUMMY_SP, NO_EXPANSION, COMMAND_LINE_EXPN, BytePos};
@ -494,10 +493,15 @@ fn arg_local_refs<'bcx, 'tcx>(bcx: &BlockAndBuilder<'bcx, 'tcx>,
llval
};
let llclosurety = type_of::type_of(bcx.ccx(), closure_ty);
let layout = bcx.ccx().layout_of(closure_ty);
let offsets = match *layout {
layout::Univariant { ref variant, .. } => &variant.offsets[..],
_ => bug!("Closures are only supposed to be Univariant")
};
for (i, (decl, ty)) in mir.upvar_decls.iter().zip(upvar_tys).enumerate() {
let byte_offset_of_var_in_env =
machine::llelement_offset(bcx.ccx(), llclosurety, i);
let byte_offset_of_var_in_env = offsets[i].bytes();
let ops = unsafe {
[llvm::LLVMRustDIBuilderCreateOpDeref(),