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stage1: More precise serialization of f16 values

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Taking a detour trough a f64 is dangerous as the softfloat library
doesn't like converting sNaN values.

The error went unnoticed as an exception is raised by the library but
the stage1 compiler doesn't give a damn.
This commit is contained in:
LemonBoy 2021-04-15 18:17:31 +02:00
parent 2d00f17d15
commit 7a4dad7e87
1 changed files with 4 additions and 1 deletions
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5
src/stage1/codegen.cpp
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@ -7436,7 +7436,10 @@ static LLVMValueRef gen_const_val(CodeGen *g, ZigValue *const_val, const char *n
case ZigTypeIdFloat:
switch (type_entry->data.floating.bit_count) {
case 16:
return LLVMConstReal(get_llvm_type(g, type_entry), zig_f16_to_double(const_val->data.x_f16));
{
LLVMValueRef as_int = LLVMConstInt(LLVMInt16Type(), const_val->data.x_f16.v, false);
return LLVMConstBitCast(as_int, get_llvm_type(g, type_entry));
}
case 32:
return LLVMConstReal(get_llvm_type(g, type_entry), const_val->data.x_f32);
case 64: