1; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -verify-machineinstrs | FileCheck %s 2 3; Test that phis are lowered. 4 5target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 6target triple = "wasm32-unknown-unknown" 7 8; Basic phi triangle. 9 10; CHECK-LABEL: test0: 11; CHECK: div_s $[[NUM0:[0-9]+]]=, $0, $pop[[NUM1:[0-9]+]]{{$}} 12; CHECK: return $[[NUM0]]{{$}} 13define i32 @test0(i32 %p) { 14entry: 15 %t = icmp slt i32 %p, 0 16 br i1 %t, label %true, label %done 17true: 18 %a = sdiv i32 %p, 3 19 br label %done 20done: 21 %s = phi i32 [ %a, %true ], [ %p, %entry ] 22 ret i32 %s 23} 24 25; Swap phis. 26 27; CHECK-LABEL: test1: 28; CHECK: .LBB{{[0-9]+}}_1: 29; CHECK: local.copy $[[NUM0:[0-9]+]]=, $[[NUM1:[0-9]+]]{{$}} 30; CHECK: local.copy $[[NUM1]]=, $[[NUM2:[0-9]+]]{{$}} 31; CHECK: local.copy $[[NUM2]]=, $[[NUM0]]{{$}} 32define i32 @test1(i32 %n) { 33entry: 34 br label %loop 35 36loop: 37 %a = phi i32 [ 0, %entry ], [ %b, %loop ] 38 %b = phi i32 [ 1, %entry ], [ %a, %loop ] 39 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] 40 41 %i.next = add i32 %i, 1 42 %t = icmp slt i32 %i.next, %n 43 br i1 %t, label %loop, label %exit 44 45exit: 46 ret i32 %a 47} 48