archived-llvm

RPCS3/archived-llvm

Fork 0

mirror of https://github.com/RPCS3/llvm.git synced 2026-01-31 01:25:19 +01:00

Commit Graph

Author	SHA1	Message	Date
Matt Arsenault	47fbd9bc5d	Revert "StructurizeCFG: Directly invert cmp instructions" This reverts commit r300732. This breaks a few tests. I think the problem is related to adding more uses of the condition that don't yet exist at this point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301242 91177308-0d34-0410-b5e6-96231b3b80d8	2017-04-24 20:25:01 +00:00
Matt Arsenault	fe6b2045f8	StructurizeCFG: Directly invert cmp instructions The most common case for a branch condition is a single use compare. Directly invert the branch predicate rather than adding a lot of xor i1 true which the DAG will have to fold later. This produces nicer to read structurizer output. This produces some random changes in codegen due to the DAG swapping branch conditions itself, and then does a poor job of dealing with those inverts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300732 91177308-0d34-0410-b5e6-96231b3b80d8	2017-04-19 18:29:07 +00:00
Matt Arsenault	a959750939	AMDGPU: Fix annotating loops with nested loop conditions If the branch condition for a loop was a phi which itself was fed from a phi from a loop, it isn't safe to try to delete the phi until after the loop is handled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298737 91177308-0d34-0410-b5e6-96231b3b80d8	2017-03-24 20:57:10 +00:00

Author

SHA1

Message

Date

Matt Arsenault

47fbd9bc5d

Revert "StructurizeCFG: Directly invert cmp instructions"

This reverts commit r300732. This breaks a few tests.
I think the problem is related to adding more uses of
the condition that don't yet exist at this point.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301242 91177308-0d34-0410-b5e6-96231b3b80d8

2017-04-24 20:25:01 +00:00

Matt Arsenault

fe6b2045f8

StructurizeCFG: Directly invert cmp instructions

The most common case for a branch condition is
a single use compare. Directly invert the branch
predicate rather than adding a lot of xor i1 true
which the DAG will have to fold later.

This produces nicer to read structurizer output.

This produces some random changes in codegen
due to the DAG swapping branch conditions itself,
and then does a poor job of dealing with those
inverts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300732 91177308-0d34-0410-b5e6-96231b3b80d8

2017-04-19 18:29:07 +00:00

Matt Arsenault

a959750939

AMDGPU: Fix annotating loops with nested loop conditions

If the branch condition for a loop was a phi which itself
was fed from a phi from a loop, it isn't safe to try
to delete the phi until after the loop is handled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298737 91177308-0d34-0410-b5e6-96231b3b80d8

2017-03-24 20:57:10 +00:00

3 Commits