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; RUN: opt -loop-idiom -S < %s -march=wasm32 | FileCheck %s
target datalayout = "e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"
; Make sure loop-idiom doesn't create memcpy or memset. These aren't well
; supported in WebAssembly for now.
;
; TODO Check the patterns are recognized once memcpy / memset are supported.
; CHECK-LABEL: @cpy(
; CHECK-NOT: llvm.memcpy
; CHECK: load
; CHECK: store
define void @cpy(i64 %Size) {
bb.nph:
%Base = alloca i8, i32 10000
%Dest = alloca i8, i32 10000
br label %for.body
for.body:
%indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
%I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
%DestI = getelementptr i8, i8* %Dest, i64 %indvar
%V = load i8, i8* %I.0.014, align 1
store i8 %V, i8* %DestI, align 1
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, %Size
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
; CHECK-LABEL: @set(
; CHECK-NOT: llvm.memset
; CHECK: store
define void @set(i8* %Base, i64 %Size) {
bb.nph:
br label %for.body
for.body:
%indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
%I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
store i8 0, i8* %I.0.014, align 1
%indvar.next = add i64 %indvar, 1
%exitcond = icmp eq i64 %indvar.next, %Size
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
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