1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 04:02:41 +01:00
llvm-mirror/test/Transforms/LoopVectorize/exact.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

24 lines
648 B
LLVM

; RUN: opt < %s -loop-vectorize -force-vector-width=4 -S | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
; CHECK-LABEL: @lshr_exact(
; CHECK: lshr exact <4 x i32>
define void @lshr_exact(i32* %x) {
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%arrayidx = getelementptr inbounds i32, i32* %x, i64 %iv
%0 = load i32, i32* %arrayidx, align 4
%conv1 = lshr exact i32 %0, 1
store i32 %conv1, i32* %arrayidx, align 4
%iv.next = add nuw nsw i64 %iv, 1
%exitcond = icmp eq i64 %iv.next, 256
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}