llvm-project

Commit Graph

Author	SHA1	Message	Date
Evgeniy Stepanov	00b3020453	Fix AArch64 prologue for empty frame with dynamic allocas. Fixes PR23804: assertion failure in emitPrologue in the case of a function with an empty frame and a dynamic alloca that needs stack realignment. This is a typical case for AddressSanitizer. llvm-svn: 241943	2015-07-10 21:24:07 +00:00
Fiona Glaser	b08ae7affb	ComputeKnownBits: be a bit smarter about ADDs If our two inputs have known top-zero bit counts M and N, we trivially know that the output cannot have any bits set in the top (min(M, N)-1) bits, since nothing could carry past that point. llvm-svn: 241927	2015-07-10 18:29:02 +00:00
Kristof Beyls	17cb8982f4	[AArch64] Add support for dynamic stack alignment Differential Revision: http://reviews.llvm.org/D8876 llvm-svn: 234471	2015-04-09 08:49:47 +00:00

Author

SHA1

Message

Date

Evgeniy Stepanov

00b3020453

Fix AArch64 prologue for empty frame with dynamic allocas.

Fixes PR23804: assertion failure in emitPrologue in the case of a
function with an empty frame and a dynamic alloca that needs stack
realignment. This is a typical case for AddressSanitizer.

llvm-svn: 241943

2015-07-10 21:24:07 +00:00

Fiona Glaser

b08ae7affb

ComputeKnownBits: be a bit smarter about ADDs

If our two inputs have known top-zero bit counts M and N, we trivially
know that the output cannot have any bits set in the top (min(M, N)-1)
bits, since nothing could carry past that point.

llvm-svn: 241927

2015-07-10 18:29:02 +00:00

Kristof Beyls

17cb8982f4

[AArch64] Add support for dynamic stack alignment

Differential Revision: http://reviews.llvm.org/D8876

llvm-svn: 234471

2015-04-09 08:49:47 +00:00

3 Commits