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cranelift: Fuzz icmp and fcmp (#4713)

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* cranelift: Add `fcmp` to fuzzer

* cranelift: Add IntCC::all()

* cranelift: Add `icmp` to fuzzer
This commit is contained in:
Afonso Bordado
2022-08-16 00:16:50 +01:00
committed by GitHub
parent 498e7156b4
commit 0f944937c0
2 changed files with 86 additions and 59 deletions
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84
cranelift/codegen/src/ir/condcodes.rs
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@@ -100,6 +100,24 @@ impl CondCode for IntCC {
}
impl IntCC {
/// Returns a slice with all possible [IntCC] values.
pub fn all() -> &'static [IntCC] {
&[
IntCC::Equal,
IntCC::NotEqual,
IntCC::SignedLessThan,
IntCC::SignedGreaterThanOrEqual,
IntCC::SignedGreaterThan,
IntCC::SignedLessThanOrEqual,
IntCC::UnsignedLessThan,
IntCC::UnsignedGreaterThanOrEqual,
IntCC::UnsignedGreaterThan,
IntCC::UnsignedLessThanOrEqual,
IntCC::Overflow,
IntCC::NotOverflow,
]
}
/// Get the corresponding IntCC with the equal component removed.
/// For conditions without a zero component, this is a no-op.
pub fn without_equal(self) -> Self {
@@ -227,6 +245,28 @@ pub enum FloatCC {
UnorderedOrGreaterThanOrEqual,
}
impl FloatCC {
/// Returns a slice with all possible [FloatCC] values.
pub fn all() -> &'static [FloatCC] {
&[
FloatCC::Ordered,
FloatCC::Unordered,
FloatCC::Equal,
FloatCC::NotEqual,
FloatCC::OrderedNotEqual,
FloatCC::UnorderedOrEqual,
FloatCC::LessThan,
FloatCC::LessThanOrEqual,
FloatCC::GreaterThan,
FloatCC::GreaterThanOrEqual,
FloatCC::UnorderedOrLessThan,
FloatCC::UnorderedOrLessThanOrEqual,
FloatCC::UnorderedOrGreaterThan,
FloatCC::UnorderedOrGreaterThanOrEqual,
]
}
}
impl CondCode for FloatCC {
fn inverse(self) -> Self {
use self::FloatCC::*;
@@ -320,24 +360,9 @@ mod tests {
use super::*;
use std::string::ToString;
static INT_ALL: [IntCC; 12] = [
IntCC::Equal,
IntCC::NotEqual,
IntCC::SignedLessThan,
IntCC::SignedGreaterThanOrEqual,
IntCC::SignedGreaterThan,
IntCC::SignedLessThanOrEqual,
IntCC::UnsignedLessThan,
IntCC::UnsignedGreaterThanOrEqual,
IntCC::UnsignedGreaterThan,
IntCC::UnsignedLessThanOrEqual,
IntCC::Overflow,
IntCC::NotOverflow,
];
#[test]
fn int_inverse() {
for r in &INT_ALL {
for r in IntCC::all() {
let cc = *r;
let inv = cc.inverse();
assert!(cc != inv);
@@ -347,7 +372,7 @@ mod tests {
#[test]
fn int_reverse() {
for r in &INT_ALL {
for r in IntCC::all() {
let cc = *r;
let rev = cc.reverse();
assert_eq!(rev.reverse(), cc);
@@ -356,33 +381,16 @@ mod tests {
#[test]
fn int_display() {
for r in &INT_ALL {
for r in IntCC::all() {
let cc = *r;
assert_eq!(cc.to_string().parse(), Ok(cc));
}
assert_eq!("bogus".parse::<IntCC>(), Err(()));
}
static FLOAT_ALL: [FloatCC; 14] = [
FloatCC::Ordered,
FloatCC::Unordered,
FloatCC::Equal,
FloatCC::NotEqual,
FloatCC::OrderedNotEqual,
FloatCC::UnorderedOrEqual,
FloatCC::LessThan,
FloatCC::LessThanOrEqual,
FloatCC::GreaterThan,
FloatCC::GreaterThanOrEqual,
FloatCC::UnorderedOrLessThan,
FloatCC::UnorderedOrLessThanOrEqual,
FloatCC::UnorderedOrGreaterThan,
FloatCC::UnorderedOrGreaterThanOrEqual,
];
#[test]
fn float_inverse() {
for r in &FLOAT_ALL {
for r in FloatCC::all() {
let cc = *r;
let inv = cc.inverse();
assert!(cc != inv);
@@ -392,7 +400,7 @@ mod tests {
#[test]
fn float_reverse() {
for r in &FLOAT_ALL {
for r in FloatCC::all() {
let cc = *r;
let rev = cc.reverse();
assert_eq!(rev.reverse(), cc);
@@ -401,7 +409,7 @@ mod tests {
#[test]
fn float_display() {
for r in &FLOAT_ALL {
for r in FloatCC::all() {
let cc = *r;
assert_eq!(cc.to_string().parse(), Ok(cc));
}