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Parse and write IR in the 'cat' subcommand.

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The 'cton-util cat' command parses the given files and writes them out again to
stdout. This has the effect of reformatting and stripping comments.

Fix a writer bug that inverted the blank line before the first EBB.
This commit is contained in:
Jakob Stoklund Olesen
2016-07-01 14:09:34 -07:00
parent 61094f6909
commit 5ce1a4f0e8
2 changed files with 20 additions and 7 deletions
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8
cranelift/src/libcretonne/write.rs
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@@ -16,7 +16,7 @@ pub fn write_function(w: &mut Write, func: &Function) -> Result {
try!(writeln!(w, " {{"));
let mut any = try!(write_preamble(w, func));
for ebb in func.ebbs_numerically() {
if !any {
if any {
try!(writeln!(w, ""));
}
try!(write_ebb(w, func, ebb));
@@ -209,14 +209,14 @@ mod tests {
let ebb = f.make_ebb();
assert_eq!(function_to_string(&f),
"function foo() {\n ss0 = stack_slot 4\nebb0:\n}\n");
"function foo() {\n ss0 = stack_slot 4\n\nebb0:\n}\n");
f.append_ebb_arg(ebb, types::I8);
assert_eq!(function_to_string(&f),
"function foo() {\n ss0 = stack_slot 4\nebb0(vx0: i8):\n}\n");
"function foo() {\n ss0 = stack_slot 4\n\nebb0(vx0: i8):\n}\n");
f.append_ebb_arg(ebb, types::F32.by(4).unwrap());
assert_eq!(function_to_string(&f),
"function foo() {\n ss0 = stack_slot 4\nebb0(vx0: i8, vx1: f32x4):\n}\n");
"function foo() {\n ss0 = stack_slot 4\n\nebb0(vx0: i8, vx1: f32x4):\n}\n");
}
}