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| author | Ajax <commial@gmail.com> | 2018-02-13 14:46:18 +0100 |
|---|---|---|
| committer | Ajax <commial@gmail.com> | 2018-02-14 12:14:07 +0100 |
| commit | c887ab5c5da2c12ccb84be93da238a9c9be3e229 (patch) | |
| tree | 13ec520246b674dcb4880fe8e3213ca4442a2662 /test/expression/simplifications.py | |
| parent | 0056026fa2f07b49d54236148ad5c528b18b381f (diff) | |
| download | miasm-c887ab5c5da2c12ccb84be93da238a9c9be3e229.tar.gz miasm-c887ab5c5da2c12ccb84be93da238a9c9be3e229.zip | |
A >> X >> Y => A >> (X+Y) ONLY IF X + Y does not overflow
Diffstat (limited to 'test/expression/simplifications.py')
| -rw-r--r-- | test/expression/simplifications.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/expression/simplifications.py b/test/expression/simplifications.py index 8799191b..5a223f7c 100644 --- a/test/expression/simplifications.py +++ b/test/expression/simplifications.py @@ -77,6 +77,9 @@ d = ExprId('d', 32) e = ExprId('e', 32) f = ExprId('f', size=64) +b_msb_null = b[:31].zeroExtend(32) +c_msb_null = c[:31].zeroExtend(32) + m = ExprMem(a) s = a[:8] @@ -377,6 +380,12 @@ to_test = [(ExprInt(1, 32) - ExprInt(1, 32), ExprInt(0, 32)), ((ExprMem(ExprCond(a, b, c)),ExprCond(a, ExprMem(b), ExprMem(c)))), (ExprCond(a, i0, i1) + ExprCond(a, i0, i1), ExprCond(a, i0, i2)), + (a << b << c, a << b << c), # Left unmodified + (a << b_msb_null << c_msb_null, + a << (b_msb_null + c_msb_null)), + (a >> b >> c, a >> b >> c), # Left unmodified + (a >> b_msb_null >> c_msb_null, + a >> (b_msb_null + c_msb_null)), ] for e_input, e_check in to_test: |