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| author | H.J. Lu <hjl.tools@gmail.com> | 2016-07-11 06:41:44 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2016-07-11 06:41:44 -0700 |
| commit | 8e55d6043e92c2a78d7ea3ab929f9668eb1b4644 (patch) | |
| tree | 7f4b07ea25e3e2a0a45878039a300245b7bfa05a | |
| parent | de4fa746271d39d490b59bdfbbdd2cf5b54c0521 (diff) | |
| download | gcc-hjl/pr71801.tar.gz | |
Don't convert TImode in debug insnhjl/pr71801
When converting V1TImode register in debug insn, check if it has been
converted to TImode already.
gcc/
PR target/71801
* config/i386/i386.c (timode_scalar_chain::fix_debug_reg_uses):
Don't convert TImode in debug insn.
gcc/testsuite/
PR target/71801
* gcc.target/i386/pr71801.c: New test.
| -rw-r--r-- | gcc/config/i386/i386.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr71801.c | 22 |
2 files changed, 25 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 9eaf4144965..d190bef5299 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -3814,6 +3814,9 @@ timode_scalar_chain::fix_debug_reg_uses (rtx reg) continue; gcc_assert (GET_CODE (val) == VAR_LOCATION); rtx loc = PAT_VAR_LOCATION_LOC (val); + /* It may have been converted to TImode already. */ + if (GET_MODE (loc) == TImode) + continue; gcc_assert (REG_P (loc) && GET_MODE (loc) == V1TImode); /* Convert V1TImode register, which has been updated by a SET diff --git a/gcc/testsuite/gcc.target/i386/pr71801.c b/gcc/testsuite/gcc.target/i386/pr71801.c new file mode 100644 index 00000000000..6c87522f31d --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr71801.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -g" } */ + +struct { + char uuid[16]; +} c; +struct { + int s_uuid[6]; +} a, b; +int bar (void); +static int get_label_uuid(char *p1) { + __builtin_memcpy(p1, a.s_uuid, sizeof(a)); + if (bar()) + __builtin_memcpy(p1, b.s_uuid, sizeof(b)); + return 0; +} +void uuidcache_addentry(char *p1) { __builtin_memcpy(&c, p1, sizeof(c)); } +void uuidcache_init() { + char d[1]; + get_label_uuid(d); + uuidcache_addentry(d); +} |