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| author | Maciej W. Rozycki <macro@linux-mips.org> | 2021-01-08 01:50:20 +0000 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@linux-mips.org> | 2021-01-09 15:50:27 +0000 |
| commit | be7e807242b36863a281df4343289b5687edd34e (patch) | |
| tree | 1267df963b0c7c4cc173b624c2d67dc3edd158e6 /gcc/tree-ssa-loop-ivcanon.c | |
| parent | 859be2e44aceb3766e4517e827e2aad7c9711b4c (diff) | |
| download | gcc-be7e807242b36863a281df4343289b5687edd34e.zip gcc-be7e807242b36863a281df4343289b5687edd34e.tar.gz gcc-be7e807242b36863a281df4343289b5687edd34e.tar.bz2 | |
PDP11: Use a mode with `const_double_zero' expressions
For predictable semantics propagate the mode from operands referred by
FP substitutions to the `const_double_zero' expressions used with the
associated condition code calculation, resulting in the following update
to insn-emit.c code produced for the `pdp11-aout' target (with machine
description line numbering change noise removed):
@@ -1514,7 +1514,7 @@
gen_rtx_COMPARE (CCmode,
gen_rtx_ABS (DFmode,
operand1),
- CONST_DOUBLE_ATOF ("0", VOIDmode))),
+ CONST_DOUBLE_ATOF ("0", DFmode))),
gen_rtx_SET (operand0,
gen_rtx_ABS (DFmode,
copy_rtx (operand1)))));
@@ -1555,7 +1555,7 @@
gen_rtx_COMPARE (CCmode,
gen_rtx_NEG (DFmode,
operand1),
- CONST_DOUBLE_ATOF ("0", VOIDmode))),
+ CONST_DOUBLE_ATOF ("0", DFmode))),
gen_rtx_SET (operand0,
gen_rtx_NEG (DFmode,
copy_rtx (operand1)))));
@@ -1790,7 +1790,7 @@
gen_rtx_MULT (DFmode,
operand1,
operand2),
- CONST_DOUBLE_ATOF ("0", VOIDmode))),
+ CONST_DOUBLE_ATOF ("0", DFmode))),
gen_rtx_SET (operand0,
gen_rtx_MULT (DFmode,
copy_rtx (operand1),
@@ -1942,7 +1942,7 @@
gen_rtx_DIV (DFmode,
operand1,
operand2),
- CONST_DOUBLE_ATOF ("0", VOIDmode))),
+ CONST_DOUBLE_ATOF ("0", DFmode))),
gen_rtx_SET (operand0,
gen_rtx_DIV (DFmode,
copy_rtx (operand1),
Provide a new iterator to provide copies of FP substitutions across the
FP modes supported as the substitutions now need to match the mode of
the operands.
gcc/
* config/pdp11/pdp11.md (PDPfp): New mode iterator.
(fcc_cc, fcc_ccnz): Use it. Add mode to `const_double_zero' and
operands.
Diffstat (limited to 'gcc/tree-ssa-loop-ivcanon.c')
0 files changed, 0 insertions, 0 deletions