1; RUN: llc < %s -asm-verbose=false | FileCheck %s
2
3; This test depends on branching support, which is not yet checked in.
4; XFAIL: *
5
6; Test that phis are lowered.
7
8target datalayout = "e-p:32:32-i64:64-n32:64-S128"
9target triple = "wasm32-unknown-unknown"
10
11; Basic phi triangle.
12
13; CHECK-LABEL: test0
14; CHECK: (setlocal [[REG:@.*]] (argument 0))
15; CHECK: (setlocal [[REG]] (sdiv [[REG]] {{.*}}))
16; CHECK: (return [[REG]])
17define i32 @test0(i32 %p) {
18entry:
19  %t = icmp slt i32 %p, 0
20  br i1 %t, label %true, label %done
21true:
22  %a = sdiv i32 %p, 3
23  br label %done
24done:
25  %s = phi i32 [ %a, %true ], [ %p, %entry ]
26  ret i32 %s
27}
28
29; Swap phis.
30
31; CHECK-LABEL: test1
32; CHECK: BB0_1:
33; CHECK: (setlocal [[REG0:@.*]] [[REG1:@.*]])
34; CHECK: (setlocal [[REG1]] [[REG2:@.*]])
35; CHECK: (setlocal [[REG2]] [[REG0]])
36define i32 @test1(i32 %n) {
37entry:
38  br label %loop
39
40loop:
41  %a = phi i32 [ 0, %entry ], [ %b, %loop ]
42  %b = phi i32 [ 1, %entry ], [ %a, %loop ]
43  %i = phi i32 [ 0, %entry ], [ %i.next, %loop ]
44
45  %i.next = add i32 %i, 1
46  %t = icmp slt i32 %i.next, %n
47  br i1 %t, label %loop, label %exit
48
49exit:
50  ret i32 %a
51}
52