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| author | Evgeny Stupachenko <evstupac@gmail.com> | 2014-10-23 16:52:11 +0000 |
|---|---|---|
| committer | Ilya Verbin <iverbin@gcc.gnu.org> | 2014-10-23 16:52:11 +0000 |
| commit | 56873e134278518a658a25bb928b473a51f57b95 (patch) | |
| tree | 762dafe16440a2ac39820ecedae967e46f1e97ff | |
| parent | 1bc5a4513e09efd42f22ccbc25ff8cd7ec5619f5 (diff) | |
| download | gcc-56873e134278518a658a25bb928b473a51f57b95.zip gcc-56873e134278518a658a25bb928b473a51f57b95.tar.gz gcc-56873e134278518a658a25bb928b473a51f57b95.tar.bz2 | |
re PR target/63534 (Bootstrap failure on x86_64/i686-linux)
PR target/63534
PR target/63618
gcc/
* cse.c (delete_trivially_dead_insns): Consider PIC register is used
while it is pseudo.
* dse.c (deletable_insn_p): Likewise.
gcc/testsuite/
* gcc.target/i386/pr63618.c: New test.
From-SVN: r216596
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/cse.c | 6 | ||||
| -rw-r--r-- | gcc/dce.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr63618.c | 34 |
5 files changed, 57 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 92303cc..70f6e0d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2014-10-23 Evgeny Stupachenko <evstupac@gmail.com> + + PR target/63534 + PR target/63618 + * cse.c (delete_trivially_dead_insns): Consider PIC register is used + while it is pseudo. + * dse.c (deletable_insn_p): Likewise. + 2014-10-23 Georg-Johann Lay <avr@gjlay.de> * config/avr/avr.c: Fix GNU coding rules and typos. @@ -6957,6 +6957,12 @@ delete_trivially_dead_insns (rtx_insn *insns, int nreg) /* If no debug insns can be present, COUNTS is just an array which counts how many times each pseudo is used. */ } + /* Pseudo PIC register should be considered as used due to possible + new usages generated. */ + if (!reload_completed + && pic_offset_table_rtx + && REGNO (pic_offset_table_rtx) >= FIRST_PSEUDO_REGISTER) + counts[REGNO (pic_offset_table_rtx)]++; /* Go from the last insn to the first and delete insns that only set unused registers or copy a register to itself. As we delete an insn, remove usage counts for registers it uses. @@ -127,6 +127,10 @@ deletable_insn_p (rtx_insn *insn, bool fast, bitmap arg_stores) if (HARD_REGISTER_NUM_P (DF_REF_REGNO (def)) && global_regs[DF_REF_REGNO (def)]) return false; + /* Initialization of pseudo PIC register should never be removed. */ + else if (DF_REF_REG (def) == pic_offset_table_rtx + && REGNO (pic_offset_table_rtx) >= FIRST_PSEUDO_REGISTER) + return false; body = PATTERN (insn); switch (GET_CODE (body)) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 48ef70d..e510541 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2014-10-23 Evgeny Stupachenko <evstupac@gmail.com> + + PR target/63618 + * gcc.target/i386/pr63618.c: New test. + 2014-10-23 Marek Polacek <polacek@redhat.com> PR c/63626 diff --git a/gcc/testsuite/gcc.target/i386/pr63618.c b/gcc/testsuite/gcc.target/i386/pr63618.c new file mode 100644 index 0000000..70e1ee4 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr63618.c @@ -0,0 +1,34 @@ +/* PR target/63618 */ +/* { dg-do run } */ +/* { dg-options "-O2 -mtune=corei7 -fno-inline" } */ +/* { dg-additional-options "-msse4.2" { target sse4 } } */ +/* { dg-additional-options "-fpic" { target fpic } } */ + +static const __float128 cf = 0.1E+10Q; + +__float128 +f128_square(__float128 x) +{ + return x * x; +} + +__float128 +f128_p3(__float128 x) +{ + return x * x * x; +} + +__float128 +cond_f128_square (__float128 x, int p) +{ + x = f128_p3 (x); + if (p) + x = f128_square(cf); + return x; +} + +int main() +{ + __float128 x = cond_f128_square (cf, 1); + return (int)(x < cf); +} |