mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Switch boolean operands to 1-bit, as llvm prefers. Will promote to 8-bit when storing to memory.

Browse Source
This commit is contained in:
Graydon Hoare 2010-09-28 16:17:28 -07:00
parent 5a4cb3ef36
commit f13306e8d6
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/comp/middle/trans.rs
View File

@ -62,6 +62,10 @@ fn T_nil() -> TypeRef {
ret llvm.LLVMVoidType();
}
fn T_i1() -> TypeRef {
ret llvm.LLVMInt1Type();
}
fn T_i8() -> TypeRef {
ret llvm.LLVMInt8Type();
}
@ -161,9 +165,9 @@ fn C_integral(int i, TypeRef t) -> ValueRef {
fn C_bool(bool b) -> ValueRef {
if (b) {
ret C_integral(1, T_i8());
ret C_integral(1, T_i1());
} else {
ret C_integral(0, T_i8());
ret C_integral(0, T_i1());
}
}
@ -274,8 +278,7 @@ fn trans_unary(@block_ctxt cx, ast.unop op, &ast.expr e) -> ValueRef {
ret cx.build.Not(trans_expr(cx, e));
}
case (ast.not) {
ret cx.build.And(C_bool(true),
cx.build.Not(trans_expr(cx, e)));
ret cx.build.Not(trans_expr(cx, e));
}
case (ast.neg) {
// FIXME: switch by signedness.