blob: 325e6bc0ae8f74aef55c1511bef0a9edb675d09f [file] [log] [blame]
; RUN: opt -S -licm -enable-mssa-loop-dependency=true %s | FileCheck %s
@v_1 = global i8 0, align 1
@v_2 = global i8 0, align 1
; CHECK-LABEL: @foo()
; CHECK: for.cond:
; CHECK-NOT: store
; CHECK: for.body:
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64
; CHECK: store
define void @foo() {
entry:
br label %for.cond
for.cond: ; preds = %for.body, %entry
%0 = phi i16 [ %inc, %for.body ], [ 0, %entry ]
%cmp = icmp slt i16 %0, 1
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
call void @llvm.memcpy.p0i8.p0i8.i64(i8* @v_1, i8 * @v_2, i64 1, i1 false)
store i8 1, i8 * @v_2, align 1
%inc = add nsw i16 %0, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
; Function Attrs: argmemonly nounwind willreturn
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8 * noalias nocapture readonly, i64, i1 immarg) #2
attributes #2 = { argmemonly nounwind willreturn }