mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-23 04:28:40 +00:00
aa61209f48
Summary: Use MemorySSA, if requested, to do less conservative memory dependency checking. This change doesn't enable the MemorySSA enhanced EarlyCSE in the default pipelines, so should be NFC. Reviewers: dberlin, sanjoy, reames, majnemer Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D19821 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280279 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
576 B
LLVM
16 lines
576 B
LLVM
; RUN: opt < %s -S -early-cse | FileCheck %s
|
|
; RUN: opt < %s -S -basicaa -early-cse-memssa | FileCheck %s
|
|
|
|
; Ensure we don't simplify away additions vectors of +0.0's (same as scalars).
|
|
define <4 x float> @fV( <4 x float> %a) {
|
|
; CHECK: %b = fadd <4 x float> %a, zeroinitializer
|
|
%b = fadd <4 x float> %a, <float 0.0,float 0.0,float 0.0,float 0.0>
|
|
ret <4 x float> %b
|
|
}
|
|
|
|
define <4 x float> @fW( <4 x float> %a) {
|
|
; CHECK: ret <4 x float> %a
|
|
%b = fadd <4 x float> %a, <float -0.0,float -0.0,float -0.0,float -0.0>
|
|
ret <4 x float> %b
|
|
}
|