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ICE when building tree-sitter@0.25.10 (libgccjit.so: error: : bitcast with types of different sizes) #787

@thesamesam

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@thesamesam

From https://github.com/pkgcraft/pkgcraft:

~/git/pkgcraft $ cargo build Compiling scallop v0.0.28 (/home/sam/git/pkgcraft/crates/scallop) Compiling tree-sitter v0.25.10 [...] libgccjit.so: error: : bitcast with types of different sizes input expression (size: 64): <addr_expr 0x7fecd3a0b240 type <pointer_type 0x7fecd3fc9348 type <array_type 0x7fecd3fc92a0 type <integer_type 0x7fece091e348 signed char> BLK size <integer_cst 0x7fecd3e167e0 constant 256> unit-size <integer_cst 0x7fecd3e168b8 constant 32> user align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x7fecd3fc7888 domain <integer_type 0x7fecd3fc77e0> pointer_to_this <pointer_type 0x7fecd3fc9348>> unsigned DI size <integer_cst 0x7fecd3e16480 constant 64> unit-size <integer_cst 0x7fecd3e16498 constant 8> align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x7fecd3fc7a80> visited arg:0 <var_decl 0x7fecd3a07c78 stack_var_1 type <array_type 0x7fecd3fc92a0> addressable visited BLK (null):0:0 size <integer_cst 0x7fecd3e167e0 256> unit-size <integer_cst 0x7fecd3e168b8 32> align:64 warn_if_not_align:0 context <function_decl 0x7fecd3d90100 _ZN11tree_sitter10TreeCursor5reset17hd27b4d0f0af69267E>>> requested type (size: 256): <record_type 0x7fecd3f9fa80 BLK size <integer_cst 0x7fecd3e167e0 type <integer_type 0x7fece091e0a8 bitsizetype> constant 256> unit-size <integer_cst 0x7fecd3e168b8 type <integer_type 0x7fece091e000 sizetype> constant 32> user align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x7fecd3f9fa80 fields <field_decl 0x7fecd3fa0460 field_0 type <array_type 0x7fecd3f9f540 type <integer_type 0x7fecd3f9bd20 int> BLK size <integer_cst 0x7fecd3e164f8 constant 0> unit-size <integer_cst 0x7fecd3e164b0 constant 0> user align:32 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x7fecd3f9f5e8 domain <integer_type 0x7fecd3f9f1f8>> BLK (null):0:0 size <integer_cst 0x7fecd3e164f8 0> unit-size <integer_cst 0x7fecd3e164b0 0> user align:32 warn_if_not_align:0 offset_align 256 decl_not_flexarray: 0 offset <integer_cst 0x7fecd3e164b0 0> bit-offset <integer_cst 0x7fecd3e164f8 0> context <record_type 0x7fecd3f9fa80 > chain <field_decl 0x7fecd3fa0500 field_1 type <array_type 0x7fecd3f9fdc8> TI (null):0:0 size <integer_cst 0x7fecd3e164c8 constant 128> unit-size <integer_cst 0x7fecd3e164e0 constant 16> user align:32 warn_if_not_align:0 offset_align 256 decl_not_flexarray: 0 offset <integer_cst 0x7fecd3e164b0 0> bit-offset <integer_cst 0x7fecd3e164f8 0> context <record_type 0x7fecd3f9fa80 > chain <field_decl 0x7fecd3fa05a0 field_2>>> pointer_to_this <pointer_type 0x7fecd3fa61f8>> error: failed to build archive at `/home/sam/git/pkgcraft/target/debug/deps/libtree_sitter-0d20b34fde8c980b.rlib`: failed to open object file: No such file or directory (os error 2) 
$ rustc -vV rustc 1.91.0-nightly (067965d6c 2025-10-27) (gentoo) binary: rustc commit-hash: 067965d6cc76bfd49637f46d05ae2111bbd2f121 commit-date: 2025-10-27 host: x86_64-unknown-linux-gnu release: 1.91.0-nightly 

This is with the rust 1.91.0 beta from 20251009 and github.com/rust-lang/rust from b93730ce97c738bdb9209aa973d3fc6fd4ce1d81.

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