mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
87c977a52b
"Unroll" is not the appropriate name for this variable. Clang already uses the term "interleave" in pragmas and metadata for this. Differential Revision: http://reviews.llvm.org/D5066 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217528 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
810 B
LLVM
25 lines
810 B
LLVM
; RUN: opt -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S < %s | FileCheck %s
|
|
@a = common global [128 x i32] zeroinitializer, align 16
|
|
|
|
;; Must not vectorize division reduction. Division is lossy.
|
|
define i32 @g() {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
; CHECK-LABEL: @g(
|
|
; CHECK-NOT: sdiv <2 x i32>
|
|
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
|
|
%r.05 = phi i32 [ 80, %entry ], [ %div, %for.body ]
|
|
%arrayidx = getelementptr inbounds [128 x i32]* @a, i64 0, i64 %indvars.iv
|
|
%0 = load i32* %arrayidx, align 4
|
|
%div = sdiv i32 %r.05, %0
|
|
%indvars.iv.next = add i64 %indvars.iv, 1
|
|
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
|
|
%exitcond = icmp eq i32 %lftr.wideiv, 1024
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end:
|
|
ret i32 %div
|
|
}
|