diff options
| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-08-08 13:39:33 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-08-08 13:39:33 +0000 |
| commit | 44f67683401d7c457b3fd2e145cd0ae6fdb8ca20 (patch) | |
| tree | 5a809c37df1938d156b3f35a25564342c3c68d22 /gcc | |
| parent | 41bc572755ec5eb8283063bdbd8fa7a8d81a6497 (diff) | |
| download | gcc-44f67683401d7c457b3fd2e145cd0ae6fdb8ca20.tar.gz | |
Don't return identity for CONST or symbolic reference
gcc/
PR rtl-optimization/54157
* combine.c (gen_lowpart_for_combine): Don't return identity
for CONST or symbolic reference.
gcc/testsuite/
PR rtl-optimization/54157
* gcc.target/i386/pr54157.c: New file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@190228 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/combine.c | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr54157.c | 21 |
4 files changed, 33 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5aa6902dbbe..7e94097a10f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2012-08-08 Richard Sandiford <rdsandiford@googlemail.com> + H.J. Lu <hongjiu.lu@intel.com> + + PR rtl-optimization/54157 + * combine.c (gen_lowpart_for_combine): Don't return identity + for CONST or symbolic reference. + 2012-08-08 Michael Zolotukhin <michael.v.zolotukhin@intel.com> * common/config/i386/i386-common.c (OPTION_MASK_ISA_ADX_SET): New. diff --git a/gcc/combine.c b/gcc/combine.c index 495e1297e93..2b91eb9ccb3 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -10634,13 +10634,6 @@ gen_lowpart_for_combine (enum machine_mode omode, rtx x) if (omode == imode) return x; - /* Return identity if this is a CONST or symbolic reference. */ - if (omode == Pmode - && (GET_CODE (x) == CONST - || GET_CODE (x) == SYMBOL_REF - || GET_CODE (x) == LABEL_REF)) - return x; - /* We can only support MODE being wider than a word if X is a constant integer or has a mode the same size. */ if (GET_MODE_SIZE (omode) > UNITS_PER_WORD diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index dc3523ade1d..bd2e3f37268 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-08-08 H.J. Lu <hongjiu.lu@intel.com> + + PR rtl-optimization/54157 + * gcc.target/i386/pr54157.c: New file. + 2012-08-08 Michael Zolotukhin <michael.v.zolotukhin@intel.com> * gcc.target/i386/adx-addcarryx32-1.c: New. diff --git a/gcc/testsuite/gcc.target/i386/pr54157.c b/gcc/testsuite/gcc.target/i386/pr54157.c new file mode 100644 index 00000000000..b5c4528b80f --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr54157.c @@ -0,0 +1,21 @@ +/* { dg-do compile { target { ! { ia32 } } } } */ +/* { dg-options "-O2 -mx32 -maddress-mode=long -ftree-vectorize" } */ + +struct s2{ + int n[24 -1][24 -1][24 -1]; +}; + +struct test2{ + struct s2 e; +}; + +struct test2 tmp2[4]; + +void main1 () +{ + int i,j; + + for (i = 0; i < 24 -4; i++) + for (j = 0; j < 24 -4; j++) + tmp2[2].e.n[1][i][j] = 8; +} |