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add range assert when loading bools

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Daniel Micay 2013-02-19 19:15:03 -05:00
parent 0262e4b138
commit 12b43b274b
2 changed files with 11 additions and 6 deletions
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9
src/librustc/middle/trans/build.rs
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@ -16,6 +16,7 @@ use lib::llvm::{Opcode, IntPredicate, RealPredicate, True, False};
use lib::llvm::{ValueRef, TypeRef, BasicBlockRef, BuilderRef, ModuleRef};
use libc::{c_uint, c_int, c_ulonglong};
use middle::trans::common::*;
use middle::trans::machine::llsize_of_real;
use core::cast::transmute;
use core::cast;
@ -540,13 +541,11 @@ pub fn LoadRangeAssert(cx: block, PointerVal: ValueRef, lo: c_ulonglong,
hi: c_ulonglong, signed: lib::llvm::Bool) -> ValueRef {
let value = Load(cx, PointerVal);
let ccx = cx.fcx.ccx;
let ty = val_ty(PointerVal);
unsafe {
assert llvm::LLVMGetTypeKind(ty) != lib::llvm::Array;
let t = llvm::LLVMGetElementType(llvm::LLVMTypeOf(PointerVal));
let min = llvm::LLVMConstInt(t, lo, signed);
let max = llvm::LLVMConstInt(t, hi, signed);
let min = llvm::LLVMConstInt(ccx.int_type, lo, signed);
let max = llvm::LLVMConstInt(ccx.int_type, hi, signed);
do vec::as_imm_buf([min, max]) |ptr, len| {
llvm::LLVMSetMetadata(value, lib::llvm::MD_range as c_uint,

8
src/librustc/middle/trans/datum.rs
View File

@ -431,7 +431,13 @@ pub impl Datum {
} else {
match self.mode {
ByValue => self.val,
ByRef => Load(bcx, self.val)
ByRef => {
if ty::type_is_bool(self.ty) {
LoadRangeAssert(bcx, self.val, 0, 2, lib::llvm::True)
} else {
Load(bcx, self.val)
}
}
}
}
}