1; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -verify-machineinstrs | FileCheck %s
2target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
3target triple = "powerpc64-unknown-linux-gnu"
4
5define i32 @test(i32 %a, i32 %b, i32 %c, i32 %d) {
6entry:
7  %sext82 = shl i32 %d, 16
8  %conv29 = ashr exact i32 %sext82, 16
9  %cmp = icmp slt i32 %sext82, 0
10  br i1 %cmp, label %cond.true, label %cond.false
11
12cond.true:                                        ; preds = %sw.epilog
13  %and33 = and i32 %conv29, 32767
14  %sub34 = sub nsw i32 %a, %and33
15  br label %cond.end
16
17cond.false:                                       ; preds = %sw.epilog
18  %add37 = add nsw i32 %conv29, %a
19  br label %cond.end
20
21; CHECK: @test
22; CHECK: add [[REG:[0-9]+]],
23; CHECK: subf [[REG2:[0-9]+]],
24; CHECK: isel {{[0-9]+}}, [[REG]], [[REG2]],
25
26cond.end:                                         ; preds = %cond.false, %cond.true
27  %cond = phi i32 [ %sub34, %cond.true ], [ %add37, %cond.false ]
28  %sext83 = shl i32 %cond, 16
29  %conv39 = ashr exact i32 %sext83, 16
30  %add41 = sub i32 %b, %a
31  %sub43 = add i32 %add41, %conv39
32  ret i32 %sub43
33}
34
35