mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-02-12 20:37:54 +00:00
Code Issues Packages Projects Releases Wiki Activity

stage1: make f80 always size 16, align 16

Browse Source
This commit is contained in:
Veikka Tuominen 2022-01-29 17:30:18 +02:00
parent b2f84c6714
commit 5a7d43df23
2 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
lib/std/math.zig
View File

@ -46,8 +46,10 @@ pub const f128_toint = 1.0 / f128_epsilon;
pub const F80Repr = if (@import("builtin").cpu.arch.endian() == .Little) extern struct {
fraction: u64,
exp: u16,
_pad: u32 = undefined,
} else extern struct {
exp: u16,
_pad: u32 = undefined, // TODO verify compatibility with hardware
fraction: u64,
};

15
src/stage1/codegen.cpp
View File

@ -8197,6 +8197,7 @@ static LLVMValueRef gen_const_val(CodeGen *g, ZigValue *const_val, const char *n
buf[1] = tmp;
#endif
LLVMValueRef as_i128 = LLVMConstIntOfArbitraryPrecision(LLVMInt128Type(), 2, buf);
if (!target_has_f80(g->zig_target)) return as_i128;
LLVMValueRef as_int = LLVMConstTrunc(as_i128, LLVMIntType(80));
return LLVMConstBitCast(as_int, get_llvm_type(g, type_entry));
}
@ -9420,13 +9421,15 @@ static void define_builtin_types(CodeGen *g) {
add_fp_entry(g, "f64", 64, LLVMDoubleType(), &g->builtin_types.entry_f64);
add_fp_entry(g, "f128", 128, LLVMFP128Type(), &g->builtin_types.entry_f128);
if (target_has_f80(g->zig_target)) {
add_fp_entry(g, "f80", 80, LLVMX86FP80Type(), &g->builtin_types.entry_f80);
} else {
{
ZigType *entry = new_type_table_entry(ZigTypeIdFloat);
entry->llvm_type = get_int_type(g, false, 128)->llvm_type;
entry->size_in_bits = 8 * LLVMStoreSizeOfType(g->target_data_ref, entry->llvm_type);
entry->abi_size = LLVMABISizeOfType(g->target_data_ref, entry->llvm_type);
if (target_has_f80(g->zig_target)) {
entry->llvm_type = LLVMX86FP80Type();
} else {
entry->llvm_type = get_int_type(g, false, 128)->llvm_type;
}
entry->size_in_bits = 8 * 16;
entry->abi_size = 16;
entry->abi_align = 16;
buf_init_from_str(&entry->name, "f80");
entry->data.floating.bit_count = 80;