diff options
Diffstat (limited to 'test/codegen/bits.go')
| -rw-r--r-- | test/codegen/bits.go | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/codegen/bits.go b/test/codegen/bits.go index 4f70627c25..018f5b909e 100644 --- a/test/codegen/bits.go +++ b/test/codegen/bits.go @@ -374,3 +374,23 @@ func foldConstOutOfRange(a uint64) uint64 { // arm64: "MOVD\t[$]19088744",-"ADD\t[$]19088744" return a + 0x1234568 } + +// Verify sign-extended values are not zero-extended under a bit mask (#61297) +func signextendAndMask8to64(a int8) (s, z uint64) { + // ppc64x: "MOVB", "ANDCC\t[$]1015," + s = uint64(a) & 0x3F7 + // ppc64x: -"MOVB", "ANDCC\t[$]247," + z = uint64(uint8(a)) & 0x3F7 + return + +} + +// Verify zero-extended values are not sign-extended under a bit mask (#61297) +func zeroextendAndMask8to64(a int8, b int16) (x, y uint64) { + // ppc64x: -"MOVB\t", -"ANDCC", "MOVBZ" + x = uint64(a) & 0xFF + // ppc64x: -"MOVH\t", -"ANDCC", "MOVHZ" + y = uint64(b) & 0xFFFF + return + +} |