Mercurial > hg > CbC > CbC_llvm

comparison test/CodeGen/PowerPC/ifcvt.ll @ 0:95c75e76d11b LLVM3.4

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children 803732b1fca8
comparison
equal deleted inserted replaced
-1:000000000000 0:95c75e76d11b
1 ; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -verify-machineinstrs | FileCheck %s
2 target 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"
3 target triple = "powerpc64-unknown-linux-gnu"
4
5 define i32 @test(i32 %a, i32 %b, i32 %c, i32 %d) {
6 entry:
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
12 cond.true: ; preds = %sw.epilog
13 %and33 = and i32 %conv29, 32767
14 %sub34 = sub nsw i32 %a, %and33
15 br label %cond.end
16
17 cond.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
26 cond.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