1 ; RUN: opt -loop-idiom -S < %s -march=wasm32 | FileCheck %s
3 target datalayout = "e-p:32:32-i64:64-n32:64-S128"
4 target triple = "wasm32-unknown-unknown"
7 ; Make sure loop-idiom doesn't create memcpy or memset. These aren't well
8 ; supported in WebAssembly for now.
10 ; TODO Check the patterns are recognized once memcpy / memset are supported.
13 ; CHECK-NOT: llvm.memcpy
16 define void @cpy(i64 %Size) {
18 %Base = alloca i8, i32 10000
19 %Dest = alloca i8, i32 10000
23 %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
24 %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
25 %DestI = getelementptr i8, i8* %Dest, i64 %indvar
26 %V = load i8, i8* %I.0.014, align 1
27 store i8 %V, i8* %DestI, align 1
28 %indvar.next = add i64 %indvar, 1
29 %exitcond = icmp eq i64 %indvar.next, %Size
30 br i1 %exitcond, label %for.end, label %for.body
37 ; CHECK-NOT: llvm.memset
39 define void @set(i8* %Base, i64 %Size) {
44 %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
45 %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
46 store i8 0, i8* %I.0.014, align 1
47 %indvar.next = add i64 %indvar, 1
48 %exitcond = icmp eq i64 %indvar.next, %Size
49 br i1 %exitcond, label %for.end, label %for.body