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| author | Vlad Lazar <vlad.lazar@arm.com> | 2018-08-16 16:33:43 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2018-08-16 10:33:43 -0600 |
| commit | ec18e48eaa0d7e06d46c7b544508a191d11a8921 (patch) | |
| tree | ab7980e4a0ea136a6da132a6eaa6bd5bad54c76d /gcc/optabs.c | |
| parent | 891b1d6872ecf18ccf605d036f8f01dec32d66a4 (diff) | |
| download | gcc-ec18e48eaa0d7e06d46c7b544508a191d11a8921.zip gcc-ec18e48eaa0d7e06d46c7b544508a191d11a8921.tar.gz gcc-ec18e48eaa0d7e06d46c7b544508a191d11a8921.tar.bz2 | |
expmed.h (canonicalize_comparison): New declaration.
* expmed.h (canonicalize_comparison): New declaration.
* expmed.c (canonicalize_comparison, equivalent_cmp_code): New function.
* expmed.c (emit_store_flag_1): Add call to canonicalize_comparison.
* optabs.c (prepare_cmp_insn): Likewise.
* rtl.h (unsigned_condition_p): New function which checks if a
comparison operator is unsigned.
* gcc.target/aarch64/imm_choice_comparison.c: New test.
From-SVN: r263591
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index cadf467..6052222 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -3812,6 +3812,9 @@ prepare_cmp_insn (rtx x, rtx y, enum rtx_code comparison, rtx size, gcc_assert (methods == OPTAB_DIRECT || methods == OPTAB_WIDEN || methods == OPTAB_LIB_WIDEN); + if (CONST_SCALAR_INT_P (y)) + canonicalize_comparison (mode, &comparison, &y); + /* If we are optimizing, force expensive constants into a register. */ if (CONSTANT_P (x) && optimize && (rtx_cost (x, mode, COMPARE, 0, optimize_insn_for_speed_p ()) |