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| author | Bernd Schmidt <bernds@redhat.com> | 2016-12-12 13:29:48 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2016-12-12 13:29:48 +0000 |
| commit | fba1216545a21ac5226d88e3ab1878acf08f9bce (patch) | |
| tree | d78d0be3a9925582b39c44ab96e4f4556b85aae5 | |
| parent | 8152d6eff66fc2884df825b250ed9e97275b3c94 (diff) | |
| download | gcc-fba1216545a21ac5226d88e3ab1878acf08f9bce.zip gcc-fba1216545a21ac5226d88e3ab1878acf08f9bce.tar.gz gcc-fba1216545a21ac5226d88e3ab1878acf08f9bce.tar.bz2 | |
re PR rtl-optimization/78669 (ICE: in combine_and_move_insns, at ira.c:3665 with -Os -fno-tree-ter -mavx512bw)
PR rtl-optimization/78669
* ira.c (combine_and_move_insns): When deleting an insn, clear the
replace flag for all used regs in that insn.
PR rtl-optimization/78669
* gcc.target/i386/pr78669.c: New test.
From-SVN: r243551
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/ira.c | 8 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr78669.c | 27 |
4 files changed, 46 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a3cc94e..1dc690f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-12-12 Bernd Schmidt <bschmidt@redhat.com> + + PR rtl-optimization/78669 + * ira.c (combine_and_move_insns): When deleting an insn, clear the + replace flag for all used regs in that insn. + 2016-12-12 Thomas Preud'homme <thomas.preudhomme@arm.com> * config/arm/arm-opts.h: Move struct arm_arch_core_flag and @@ -3714,6 +3714,14 @@ combine_and_move_insns (void) remove_death (regno, use_insn); SET_REG_N_REFS (regno, 0); REG_FREQ (regno) = 0; + df_ref use; + FOR_EACH_INSN_USE (use, def_insn) + { + unsigned int use_regno = DF_REF_REGNO (use); + if (!HARD_REGISTER_NUM_P (use_regno)) + reg_equiv[use_regno].replace = 0; + } + delete_insn (def_insn); reg_equiv[regno].init_insns = NULL; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ed44f32..66407ff 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-12-12 Bernd Schmidt <bschmidt@redhat.com> + + PR rtl-optimization/78669 + * gcc.target/i386/pr78669.c: New test. + 2016-12-12 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> * g++.dg/debug/dwarf2/typedef1.C: Adjust pattern for last change. diff --git a/gcc/testsuite/gcc.target/i386/pr78669.c b/gcc/testsuite/gcc.target/i386/pr78669.c new file mode 100644 index 0000000..14f0f06 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr78669.c @@ -0,0 +1,27 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target int128 } */ +/* { dg-options "-Os -fno-tree-ter -mavx512bw " } */ +typedef __int128 u128; +typedef __int128 v64u128 __attribute__((vector_size(64))); + +v64u128 v64u128_g; + +static inline v64u128 +baz(v64u128 v64u128_0, v64u128 v64u128_3) +{ + v64u128_0 |= (v64u128){} == v64u128_0; + v64u128_3 = (v64u128){} >= v64u128_3; + return v64u128_0 + v64u128_3; +} + +static void __attribute__((noinline, noclone)) +bar(u128 u128_0, v64u128 v64u128_3) +{ + v64u128_g = baz((v64u128){(u128)1 << 64, u128_0}, v64u128_3); +} + +void +foo(v64u128 v64u128_3) +{ + bar(3, v64u128_3); +} |