llvm-project

Commit Graph

Author	SHA1	Message	Date
Hans Wennborg	c4b1d20ba2	Win64: Don't emit unwind info for "leaf" functions (PR30337) According to MSDN (see the PR), functions which don't touch any callee-saved registers (including %rsp) don't need any unwind info. This patch makes LLVM not emit unwind info for such functions, to save binary size. Differential Revision: https://reviews.llvm.org/D24748 llvm-svn: 282185	2016-09-22 19:50:05 +00:00
David Majnemer	bf4119faf6	[X86] Add RIP to GR64_TCW64 The MachineVerifier wants to check that the register operands of an instruction belong to the instruction's register class. RIP-relative control flow instructions violated this by referencing RIP. While this was fixed for SysV, it was never fixed for Win64. llvm-svn: 254315	2015-11-30 19:04:19 +00:00

Author

SHA1

Message

Date

Hans Wennborg

c4b1d20ba2

Win64: Don't emit unwind info for "leaf" functions (PR30337)

According to MSDN (see the PR), functions which don't touch any callee-saved
registers (including %rsp) don't need any unwind info.

This patch makes LLVM not emit unwind info for such functions, to save
binary size.

Differential Revision: https://reviews.llvm.org/D24748

llvm-svn: 282185

2016-09-22 19:50:05 +00:00

David Majnemer

bf4119faf6

[X86] Add RIP to GR64_TCW64

The MachineVerifier wants to check that the register operands of an
instruction belong to the instruction's register class.  RIP-relative
control flow instructions violated this by referencing RIP.  While this
was fixed for SysV, it was never fixed for Win64.

llvm-svn: 254315

2015-11-30 19:04:19 +00:00

2 Commits