diff options
| author | Martin Liska <mliska@suse.cz> | 2020-01-07 10:12:35 +0100 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2020-01-07 09:12:35 +0000 |
| commit | a86689f5e9b939a4fc020b873fd9fca6ed98f1e5 (patch) | |
| tree | adf02a4a598019d76087778dfd8a11fe67264935 /gcc | |
| parent | 5dbaaa20c94bf584aa15a6ddda3aa21f5afbb4c4 (diff) | |
| download | gcc-a86689f5e9b939a4fc020b873fd9fca6ed98f1e5.zip gcc-a86689f5e9b939a4fc020b873fd9fca6ed98f1e5.tar.gz gcc-a86689f5e9b939a4fc020b873fd9fca6ed98f1e5.tar.bz2 | |
Mark -free as Optimization option.
From-SVN: r279946
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 12 | ||||
| -rw-r--r-- | gcc/common.opt | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr92860.c | 53 |
4 files changed, 68 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6c39e1e..288c0e2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,8 +1,14 @@ 2020-01-07 Martin Liska <mliska@suse.cz> - PR optimization/92860 - * params.opt: Mark param_min_crossjump_insns with Optimization - keyword. + PR tree-optimization/92860 + * common.opt: Make flag_ree as optimization + attribute. + +2020-01-07 Martin Liska <mliska@suse.cz> + + PR optimization/92860 + * params.opt: Mark param_min_crossjump_insns with Optimization + keyword. 2020-01-07 Luo Xiong Hu <luoxhu@linux.ibm.com> diff --git a/gcc/common.opt b/gcc/common.opt index a22ab00..02c7cdd 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -2426,7 +2426,7 @@ Common Ignore Does nothing. Preserved for backward compatibility. free -Common Report Var(flag_ree) Init(0) +Common Report Var(flag_ree) Init(0) Optimization Turn on Redundant Extensions Elimination pass. fshow-column diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 517c851..dabc9d2 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2020-01-07 Martin Liska <mliska@suse.cz> + + PR tree-optimization/92860 + * gcc.dg/pr92860.c: New test. + 2020-01-07 Jakub Jelinek <jakub@redhat.com> PR c++/91369 diff --git a/gcc/testsuite/gcc.dg/pr92860.c b/gcc/testsuite/gcc.dg/pr92860.c new file mode 100644 index 0000000..74207a9 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr92860.c @@ -0,0 +1,53 @@ +/* PR tree-optimization/92860. */ +/* Testcase derived from 20111227-1.c to ensure that REE is combining + redundant zero extends with zero extend to wider mode. */ +/* { dg-do compile { target i?86-*-* x86_64-*-* } } */ +/* { dg-options "-fdump-rtl-ree" } */ + +extern void abort (void); + +unsigned short s; +unsigned int i; +unsigned long l; +unsigned char v = -1; + +void +__attribute__ ((optimize("-O2"))) +baz() +{ +} + +void __attribute__((noinline,noclone)) +bar (int t) +{ + if (t == 2 && s != 0xff) + abort (); + if (t == 1 && i != 0xff) + abort (); + if (t == 0 && l != 0xff) + abort (); +} + +void __attribute__((noinline,noclone)) +foo (unsigned char *a, int t) +{ + unsigned char r = v; + + if (t == 2) + s = (unsigned short) r; + else if (t == 1) + i = (unsigned int) r; + else if (t == 0) + l = (unsigned long) r; + bar (t); +} + +int main(void) +{ + foo (&v, 0); + foo (&v, 1); + foo (&v, 2); + return 0; +} + +/* { dg-final { scan-rtl-dump-not "Elimination opportunities" "ree" } } */ |