50 lines
1.8 KiB
LLVM
50 lines
1.8 KiB
LLVM
|
; RUN: opt < %s -basic-aa -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
||
|
|
|
||
|
|
;CHECK: hexit
|
||
|
|
;CHECK: zext <4 x i8>
|
||
|
|
;CHECK: ret
|
||
|
|
|
||
|
|
define noalias i8* @hexit(i8* nocapture %bytes, i64 %length) nounwind uwtable ssp {
|
||
|
|
entry:
|
||
|
|
%shl = shl i64 %length, 1
|
||
|
|
%add28 = or i64 %shl, 1
|
||
|
|
%call = tail call i8* @calloc(i64 1, i64 %add28) nounwind
|
||
|
|
%cmp29 = icmp eq i64 %shl, 0
|
||
|
|
br i1 %cmp29, label %for.end, label %for.body.lr.ph
|
||
|
|
|
||
|
|
for.body.lr.ph: ; preds = %entry
|
||
|
|
%0 = shl i64 %length, 1
|
||
|
|
br label %for.body
|
||
|
|
|
||
|
|
for.body: ; preds = %for.body, %for.body.lr.ph
|
||
|
|
%i.030 = phi i64 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]
|
||
|
|
%shr = lshr i64 %i.030, 1
|
||
|
|
%arrayidx = getelementptr inbounds i8, i8* %bytes, i64 %shr
|
||
|
|
%1 = load i8, i8* %arrayidx, align 1
|
||
|
|
%conv = zext i8 %1 to i32
|
||
|
|
%and = shl i64 %i.030, 2
|
||
|
|
%neg = and i64 %and, 4
|
||
|
|
%and3 = xor i64 %neg, 4
|
||
|
|
%sh_prom = trunc i64 %and3 to i32
|
||
|
|
%shl4 = shl i32 15, %sh_prom
|
||
|
|
%and5 = and i32 %conv, %shl4
|
||
|
|
%shr11 = lshr i32 %and5, %sh_prom
|
||
|
|
%conv13 = and i32 %shr11, 254
|
||
|
|
%cmp15 = icmp ugt i32 %conv13, 9
|
||
|
|
%cond = select i1 %cmp15, i32 87, i32 48
|
||
|
|
%add17 = add nsw i32 %cond, %shr11
|
||
|
|
%conv18 = trunc i32 %add17 to i8
|
||
|
|
%arrayidx19 = getelementptr inbounds i8, i8* %call, i64 %i.030
|
||
|
|
store i8 %conv18, i8* %arrayidx19, align 1
|
||
|
|
%inc = add i64 %i.030, 1
|
||
|
|
%exitcond = icmp eq i64 %inc, %0
|
||
|
|
br i1 %exitcond, label %for.end, label %for.body
|
||
|
|
|
||
|
|
for.end: ; preds = %for.body, %entry
|
||
|
|
ret i8* %call
|
||
|
|
}
|
||
|
|
|
||
|
|
declare noalias i8* @calloc(i64, i64) nounwind
|