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| author | Marc Glisse <marc.glisse@inria.fr> | 2016-05-10 21:52:20 +0200 |
|---|---|---|
| committer | Marc Glisse <glisse@gcc.gnu.org> | 2016-05-10 19:52:20 +0000 |
| commit | e39dab2c21c0e1fe615a1050da051c8088cb3267 (patch) | |
| tree | 0a73b6e9c04150d305bc301e3cee930e37a9d50d /gcc/testsuite | |
| parent | 601070fce9761f7665d5916c786fe065f3165c00 (diff) | |
| download | gcc-e39dab2c21c0e1fe615a1050da051c8088cb3267.zip gcc-e39dab2c21c0e1fe615a1050da051c8088cb3267.tar.gz gcc-e39dab2c21c0e1fe615a1050da051c8088cb3267.tar.bz2 | |
Simple bitop reassoc in match.pd
2016-05-10 Marc Glisse <marc.glisse@inria.fr>
gcc/
* fold-const.c (fold_binary_loc) [(X ^ Y) & Y]: Remove and merge with...
* match.pd ((X & Y) ^ Y): ... this.
((X & Y) & Y, (X | Y) | Y, (X ^ Y) ^ Y, (X & Y) & (X & Z), (X | Y)
| (X | Z), (X ^ Y) ^ (X ^ Z)): New transformations.
gcc/testsuite/
* gcc.dg/tree-ssa/bit-assoc.c: New testcase.
* gcc.dg/tree-ssa/pr69270.c: Adjust.
* gcc.dg/tree-ssa/vrp59.c: Disable forwprop.
From-SVN: r236103
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/bit-assoc.c | 29 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr69270.c | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/vrp59.c | 2 |
4 files changed, 40 insertions, 3 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7ab92a5..ee47bd8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2016-05-10 Marc Glisse <marc.glisse@inria.fr> + + * gcc.dg/tree-ssa/bit-assoc.c: New testcase. + * gcc.dg/tree-ssa/pr69270.c: Adjust. + * gcc.dg/tree-ssa/vrp59.c: Disable forwprop. + 2016-05-10 Ilya Enkovich <ilya.enkovich@intel.com> PR target/70799 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/bit-assoc.c b/gcc/testsuite/gcc.dg/tree-ssa/bit-assoc.c new file mode 100644 index 0000000..b563f5e --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/bit-assoc.c @@ -0,0 +1,29 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fdump-tree-forwprop1-details -fdump-tree-ccp1-details" } */ + +int f1(int a, int b){ + int c = a & b; + return c & b; +} +int f2(int a, int b){ + int c = a | b; + return b | c; +} +int g1(int a, int b, int c){ + int d = a & b; + int e = b & c; + return d & e; +} +int g2(int a, int b, int c){ + int d = a | b; + int e = c | b; + return d | e; +} +int g3(int a, int b, int c){ + int d = a ^ b; + int e = b ^ c; + return e ^ d; +} + +/* { dg-final { scan-tree-dump-times "Match-and-simplified" 2 "ccp1" } } */ +/* { dg-final { scan-tree-dump-times "gimple_simplified" 3 "forwprop1" } } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr69270.c b/gcc/testsuite/gcc.dg/tree-ssa/pr69270.c index 529b521..28f6d0f 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/pr69270.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr69270.c @@ -7,8 +7,10 @@ /* { dg-final { scan-tree-dump-times "Replaced .bufferstep_\[0-9\]+. with constant .1." 1 "dom3"} } */ /* And some assignments ought to fold down to constants. */ -/* { dg-final { scan-tree-dump-times "Folded to: _\[0-9\]+ = 1;" 2 "dom3"} } */ -/* { dg-final { scan-tree-dump-times "Folded to: _\[0-9\]+ = 0;" 2 "dom3"} } */ +/* { dg-final { scan-tree-dump-times "Folded to: _\[0-9\]+ = -1;" 1 "dom3"} } */ +/* { dg-final { scan-tree-dump-times "Folded to: _\[0-9\]+ = -2;" 1 "dom3"} } */ +/* { dg-final { scan-tree-dump-times "Folded to: _\[0-9\]+ = 1;" 1 "dom3"} } */ +/* { dg-final { scan-tree-dump-times "Folded to: _\[0-9\]+ = 0;" 1 "dom3"} } */ /* The XOR operations should have been optimized to constants. */ /* { dg-final { scan-tree-dump-not "bit_xor" "dom3"} } */ diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp59.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp59.c index 0f5801d..5f6e9d9 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/vrp59.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp59.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-tree-ccp -fdump-tree-vrp1" } */ +/* { dg-options "-O2 -fno-tree-ccp -fno-tree-forwprop -fdump-tree-vrp1" } */ int f(int x) { |