Commit Graph

3 Commits

Author SHA1 Message Date
Francis Visoiu Mistrih ca0df55065 [CodeGen] Unify MBB reference format in both MIR and debug output
As part of the unification of the debug format and the MIR format, print
MBB references as '%bb.5'.

The MIR printer prints the IR name of a MBB only for block definitions.

* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g'
* find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g'
* find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g'
* grep -nr 'BB#' and fix

Differential Revision: https://reviews.llvm.org/D40422

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319665 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-04 17:18:51 +00:00
Alex Bradbury f9cc39148a [RISCV] Use register X0 (ZERO) for constant 0
The obvious approach of defining a pattern like the one below actually doesn't
work:
`def : Pat<(i32 0), (i32 X0)>;`

As was noted when Lanai made this change (https://reviews.llvm.org/rL288215),
attempting to handle the constant 0 in tablegen leads to assertions due to a
physical register being used where a virtual register is expected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318738 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-21 08:23:08 +00:00
Alex Bradbury fbdb03fa56 [RISCV] Implement lowering of ISD::SELECT
Although ISD::SELECT_CC is a more natural match for RISCVISD::SELECT_CC (and
ultimately the integer RISC-V conditional branch instructions), we choose to
expand ISD::SELECT_CC and lower ISD::SELECT. The appropriate compare+branch
will be created in the case where an ISD::SELECT condition value is created by
an ISD::SETCC node, which operates on XLen types. Other datatypes such as
floating point don't have conditional branch instructions, and lowering
ISD::SELECT allows more flexibility for handling these cases.

Differential Revision: https://reviews.llvm.org/D29937


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318735 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-21 07:51:32 +00:00