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Prepare inbounds_gep for opaque pointers

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Implement inbounds_gep using LLVMBuildInBoundsGEP2 which takes an
explicit type argument instead of deriving it from a pointer type.
This commit is contained in:
Tomasz Miąsko 2021-08-01 00:00:00 +00:00
parent 4013e094f5
commit 77e5e17231
11 changed files with 61 additions and 22 deletions
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16
compiler/rustc_codegen_llvm/src/intrinsic.rs
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@ -686,11 +686,19 @@ fn codegen_emcc_try(
// create an alloca and pass a pointer to that.
let ptr_align = bx.tcx().data_layout.pointer_align.abi;
let i8_align = bx.tcx().data_layout.i8_align.abi;
let catch_data =
catch.alloca(bx.type_struct(&[bx.type_i8p(), bx.type_bool()], false), ptr_align);
let catch_data_0 = catch.inbounds_gep(catch_data, &[bx.const_usize(0), bx.const_usize(0)]);
let catch_data_type = bx.type_struct(&[bx.type_i8p(), bx.type_bool()], false);
let catch_data = catch.alloca(catch_data_type, ptr_align);
let catch_data_0 = catch.inbounds_gep(
catch_data_type,
catch_data,
&[bx.const_usize(0), bx.const_usize(0)],
);
catch.store(ptr, catch_data_0, ptr_align);
let catch_data_1 = catch.inbounds_gep(catch_data, &[bx.const_usize(0), bx.const_usize(1)]);
let catch_data_1 = catch.inbounds_gep(
catch_data_type,
catch_data,
&[bx.const_usize(0), bx.const_usize(1)],
);
catch.store(is_rust_panic, catch_data_1, i8_align);
let catch_data = catch.bitcast(catch_data, bx.type_i8p());