diff options
| author | Claudiu Zissulescu <claziss@gmail.com> | 2020-01-28 13:59:34 +0200 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gmail.com> | 2020-01-28 14:00:25 +0200 |
| commit | 928605936939d4364b5019b2bdda63612fbc4fdb (patch) | |
| tree | de19771717d9f5dc1cdb8dcc15cd78130ebf8b62 /gcc | |
| parent | 465c7c89e92a6d6d582173e505cb16dcb9873034 (diff) | |
| download | gcc-928605936939d4364b5019b2bdda63612fbc4fdb.zip gcc-928605936939d4364b5019b2bdda63612fbc4fdb.tar.gz gcc-928605936939d4364b5019b2bdda63612fbc4fdb.tar.bz2 | |
[ARC] Pass along -mcode-density flag to the assembler.
This change makes sure that if the driver is invoked with
"-mcode-density" flag, then the assembler will receive it too.
Note Claudiu Zissulescu:
This is an old patch of which I forgot to add the test.
testsuite/
2019-09-03 Sahahb Vahedi <shahab@synopsys.com>
* gcc.target/arc/code-density-flag.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/arc/code-density-flag.c | 34 |
2 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d9441cb..c08bc22 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2020-01-28 Sahahb Vahedi <shahab@synopsys.com> + + * gcc.target/arc/code-density-flag.c: New test + 2020-01-28 Tobias Burnus <tobias@codesourcery.com> PR fortran/93464 diff --git a/gcc/testsuite/gcc.target/arc/code-density-flag.c b/gcc/testsuite/gcc.target/arc/code-density-flag.c new file mode 100644 index 0000000..1ecf1a2 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/code-density-flag.c @@ -0,0 +1,34 @@ +/* Produce code-dense instructions and the assembler must * + * be okay with it. An example would be: * + * * + * sub_s r3, r1, r3 * + * * + * While generally for _short instructions_ , it is not * + * allowed to have different registers as the first and * + * second operands, the code-dense mode allows it. * + * This test is about the fact that if "-mcode-density" is * + * passed to gcc driver as the flag, "as" must receive it * + * as well, else it is going to choke on such encodings. */ + +/* { dg-do assemble } */ +/* { dg-skip-if "" { ! { clmcpu } } } */ +/* { dg-options "-mcpu=em_mini -mcode-density" } */ + +typedef long long uint64_t; + +uint64_t f1(void) +{ + return 1; +} + +void f2(void) +{ + uint64_t start_us = 0; + while ((f1() - start_us) < 2); +} + +/* This is a tricky check, because it hardcodes register * + * numbers. Nevertheless, it is easier than coming up with * + * a regular expression that the first two operands should * + * not be the same. */ +/* { dg-final { scan-assembler "sub_s\\s+r3,r1,r3" } } */ |