Zhaoshi Zheng 7f59505011 [QTOOL-37352] Consider isLegalAddressingImm in Constant Hoisting ...

In Thumb1, legal imm range is [0, 255] for ADD/SUB instructions. However, the
legal imm range for LD/ST in (R+Imm) addressing mode is [0, 127]. Imms in
[128, 255] are materialized by mov R, #imm, and LD/STs use them in (R+R)
addressing mode.

This patch checks if a constant is used as offset in (R+Imm), if so, it checks
isLegalAddressingMode passing the constant value as BaseOffset.

Differential Revision: https://reviews.llvm.org/D50931

llvm-svn: 340882

2018-08-28 23:00:59 +00:00

..

AArch64

…

ARM

[QTOOL-37352] Consider isLegalAddressingImm in Constant Hoisting

2018-08-28 23:00:59 +00:00

PowerPC

…

X86

[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.

2018-05-09 02:40:45 +00:00