diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-30 06:53:46 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-05-30 06:53:46 +0000 |
| commit | 77b4556a2f1954c4ffde49b7d19604d82f9b5e3e (patch) | |
| tree | 716cc6742c97b8f4aa23addb4244350e75ac4657 | |
| parent | df084314d8c12acbc59eaf20f35530300ceaa9fe (diff) | |
| download | gcc-77b4556a2f1954c4ffde49b7d19604d82f9b5e3e.tar.gz | |
PR rtl-optimization/53519
* combine.c (simplify_shift_const_1) <case NOT>: Use constm1_rtx
instead of GEN_INT (GET_MODE_MASK (mode)) as second operand of XOR.
* gcc.c-torture/compile/pr53519.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@188001 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/combine.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr53519.c | 26 |
4 files changed, 38 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7999a502aa6..b915e682a45 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-05-30 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/53519 + * combine.c (simplify_shift_const_1) <case NOT>: Use constm1_rtx + instead of GEN_INT (GET_MODE_MASK (mode)) as second operand of XOR. + 2012-05-30 Ramana Radhakrishnan <ramana.radhakrishnan@linaro.org> * config/arm/arm.c (arm_evpc_neon_vrev): Adjust off by one error. diff --git a/gcc/combine.c b/gcc/combine.c index d23ecfcbccd..d6897a17958 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -10284,8 +10284,7 @@ simplify_shift_const_1 (enum rtx_code code, enum machine_mode result_mode, break; /* Make this fit the case below. */ - varop = gen_rtx_XOR (mode, XEXP (varop, 0), - GEN_INT (GET_MODE_MASK (mode))); + varop = gen_rtx_XOR (mode, XEXP (varop, 0), constm1_rtx); continue; case IOR: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7e52cb9499a..2f42a8e671e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-05-30 Jakub Jelinek <jakub@redhat.com> + + PR rtl-optimization/53519 + * gcc.c-torture/compile/pr53519.c: New test. + 2012-05-30 Ramana Radhakrishnan <ramana.radhakrishnan@linaro.org> * gcc.target/arm/neon-vrev.c: New. diff --git a/gcc/testsuite/gcc.c-torture/compile/pr53519.c b/gcc/testsuite/gcc.c-torture/compile/pr53519.c new file mode 100644 index 00000000000..3adadcb2c0e --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr53519.c @@ -0,0 +1,26 @@ +/* PR rtl-optimization/53519 */ + +int a, b, c, d, e; + +short int +foo (short int x) +{ + return a == 0 ? x : 0; +} + +short int +bar (int x, int y) +{ + return x + y; +} + +void +baz (void) +{ + if (!e) + { + int f = foo (65535 ^ b); + if (bar (!6L <= ~f, ~e) == c) + d = 0; + } +} |