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 triple = "wasm32-unknown-unknown" 6 7; Basic phi triangle. 8 9; CHECK-LABEL: test0: 10; CHECK: div_s $[[NUM0:[0-9]+]]=, $0, $pop[[NUM1:[0-9]+]]{{$}} 11; CHECK: return $[[NUM0]]{{$}} 12define i32 @test0(i32 %p) { 13entry: 14 %t = icmp slt i32 %p, 0 15 br i1 %t, label %true, label %done 16true: 17 %a = sdiv i32 %p, 3 18 br label %done 19done: 20 %s = phi i32 [ %a, %true ], [ %p, %entry ] 21 ret i32 %s 22} 23 24; Swap phis. 25 26; CHECK-LABEL: test1: 27; CHECK: .LBB{{[0-9]+}}_1: 28; CHECK: local.copy $[[NUM0:[0-9]+]]=, $[[NUM1:[0-9]+]]{{$}} 29; CHECK: local.copy $[[NUM1]]=, $[[NUM2:[0-9]+]]{{$}} 30; CHECK: local.copy $[[NUM2]]=, $[[NUM0]]{{$}} 31define i32 @test1(i32 %n) { 32entry: 33 br label %loop 34 35loop: 36 %a = phi i32 [ 0, %entry ], [ %b, %loop ] 37 %b = phi i32 [ 1, %entry ], [ %a, %loop ] 38 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] 39 40 %i.next = add i32 %i, 1 41 %t = icmp slt i32 %i.next, %n 42 br i1 %t, label %loop, label %exit 43 44exit: 45 ret i32 %a 46} 47