llvm-project

Commit Graph

Author	SHA1	Message	Date
Tim Northover	39108f4c7a	ARM: make Thumb1 instructions non-flag-setting in IT block. Many Thumb1 instructions are defined to set CPSR if executed outside an IT block, but leave it alone from inside one. In MachineIR this is represented by whether an optional register is CPSR or NoReg (0), and affects how the instructions are printed. This sets the instruction to the appropriate form during if-conversion.	2020-07-28 13:31:17 +01:00
Kyle Butt	8699921c4b	IfConversion: Fix bug introduced by rescanning diamonds. Passing the wrong values for predicate-clobbering. Simple to miss. Added an assert to make this easier to catch in the future. llvm-svn: 280517	2016-09-02 18:29:26 +00:00

Author

SHA1

Message

Date

Tim Northover

39108f4c7a

ARM: make Thumb1 instructions non-flag-setting in IT block.

Many Thumb1 instructions are defined to set CPSR if executed outside an IT
block, but leave it alone from inside one. In MachineIR this is represented by
whether an optional register is CPSR or NoReg (0), and affects how the
instructions are printed.

This sets the instruction to the appropriate form during if-conversion.

2020-07-28 13:31:17 +01:00

Kyle Butt

8699921c4b

IfConversion: Fix bug introduced by rescanning diamonds.

Passing the wrong values for predicate-clobbering. Simple to miss.
Added an assert to make this easier to catch in the future.

llvm-svn: 280517

2016-09-02 18:29:26 +00:00

2 Commits