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| author | Martin Liska <mliska@suse.cz> | 2020-08-13 09:38:41 +0200 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2020-08-13 10:27:37 +0200 |
| commit | f91770216eade83f068528c1e4f00e2ac3b23044 (patch) | |
| tree | 21fa47470882ead9d0bc6ce20225990b26e3e5ab /gcc | |
| parent | 2b5490f5d1633fedf20e6eba87153c5963c61368 (diff) | |
| download | gcc-f91770216eade83f068528c1e4f00e2ac3b23044.zip gcc-f91770216eade83f068528c1e4f00e2ac3b23044.tar.gz gcc-f91770216eade83f068528c1e4f00e2ac3b23044.tar.bz2 | |
ipa: fix ICE in get_default_value
The patch aligns code with ipcp_bits_lattice::set_to_constant
where we properly mask m_value with m_mask. The same should
be done here.
gcc/ChangeLog:
PR ipa/96482
* ipa-cp.c (ipcp_bits_lattice::meet_with_1): Mask m_value
with m_mask.
gcc/testsuite/ChangeLog:
PR ipa/96482
* gcc.dg/ipa/pr96482-2.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ipa-cp.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/ipa/pr96482-2.c | 33 |
2 files changed, 34 insertions, 1 deletions
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index 2b21280..e4910a0 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -1048,7 +1048,7 @@ ipcp_bits_lattice::meet_with_1 (widest_int value, widest_int mask, widest_int old_mask = m_mask; m_mask = (m_mask | mask) | (m_value ^ value); - m_value &= value; + m_value &= ~m_mask; if (wi::sext (m_mask, precision) == -1) return set_to_bottom (); diff --git a/gcc/testsuite/gcc.dg/ipa/pr96482-2.c b/gcc/testsuite/gcc.dg/ipa/pr96482-2.c new file mode 100644 index 0000000..54b71ac --- /dev/null +++ b/gcc/testsuite/gcc.dg/ipa/pr96482-2.c @@ -0,0 +1,33 @@ +/* PR ipa/96482 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +int i2c_transfer(); +void _dev_err(); + +struct i2c_msg { + char bufaddr; + int adapterdev; +} wdt87xx_i2c_xfer_client; + +int wdt87xx_i2c_xfer_client_0, wdt87xx_i2c_xfer_rxdata, wdt87xx_get_string_str_idx; + +void +static wdt87xx_i2c_xfer(void *txdata, unsigned rxlen) { + struct i2c_msg msgs[] = {wdt87xx_i2c_xfer_client_0, rxlen, + wdt87xx_i2c_xfer_rxdata}; + int error = i2c_transfer(wdt87xx_i2c_xfer_client, msgs); + _dev_err("", __func__, error); +} +static void wdt87xx_get_string(unsigned len) { + char tx_buf[] = {wdt87xx_get_string_str_idx, 3}; + int rx_len = len + 2; + wdt87xx_i2c_xfer(tx_buf, rx_len); +} + +void +wdt87xx_ts_probe_tx_buf() { + wdt87xx_get_string(34); + wdt87xx_get_string(8); + wdt87xx_i2c_xfer(wdt87xx_ts_probe_tx_buf, 2); +} |