diff options
| author | Segher Boessenkool <segher@kernel.crashing.org> | 2018-07-30 19:50:26 +0200 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2018-07-30 19:50:26 +0200 |
| commit | 8f953899e38f92e8f4cdeaffaa04f8a9e69a7726 (patch) | |
| tree | 94407e31f303b0acc7b72de842d1ecae03af251f | |
| parent | a64ede727f78b423591995428fbc5a6ac4e72cb0 (diff) | |
| download | gcc-8f953899e38f92e8f4cdeaffaa04f8a9e69a7726.zip gcc-8f953899e38f92e8f4cdeaffaa04f8a9e69a7726.tar.gz gcc-8f953899e38f92e8f4cdeaffaa04f8a9e69a7726.tar.bz2 | |
arm: Generate correct const_ints (PR86640)
In arm_block_set_aligned_vect 8-bit constants are generated as zero-
extended const_ints, not sign-extended as required. Fix that.
PR target/86640
* config/arm/arm.c (arm_block_set_aligned_vect): Use gen_int_mode
instead of GEN_INT.
From-SVN: r263075
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 5 |
2 files changed, 7 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 20781df..0616687 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-07-30 Segher Boessenkool <segher@kernel.crashing.org> + + PR target/86640 + * config/arm/arm.c (arm_block_set_aligned_vect): Use gen_int_mode + instead of GEN_INT. + 2018-07-30 Bernd Edlinger <bernd.edlinger@hotmail.de> * tree-ssa-forwprop.c (simplify_builtin_call): Don't create a not NUL diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index cf12ace..f5eece4 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -30046,7 +30046,6 @@ arm_block_set_aligned_vect (rtx dstbase, rtx dst, addr, mem; rtx val_vec, reg; machine_mode mode; - unsigned HOST_WIDE_INT v = value; unsigned int offset = 0; gcc_assert ((align & 0x3) == 0); @@ -30065,10 +30064,8 @@ arm_block_set_aligned_vect (rtx dstbase, dst = copy_addr_to_reg (XEXP (dstbase, 0)); - v = sext_hwi (v, BITS_PER_WORD); - reg = gen_reg_rtx (mode); - val_vec = gen_const_vec_duplicate (mode, GEN_INT (v)); + val_vec = gen_const_vec_duplicate (mode, gen_int_mode (value, QImode)); /* Emit instruction loading the constant value. */ emit_move_insn (reg, val_vec); |