comparison test/CodeGen/X86/phi-bit-propagation.ll @ 0:95c75e76d11b LLVM3.4

LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children afa8332a0e37
comparison
equal deleted inserted replaced
-1:000000000000 0:95c75e76d11b
1 ; RUN: llc < %s -march=x86-64 | FileCheck %s
2
3 %"class.std::bitset" = type { [8 x i8] }
4
5 define zeroext i1 @_Z3fooPjmS_mRSt6bitsetILm32EE(i32* nocapture %a, i64 %asize, i32* nocapture %b, i64 %bsize, %"class.std::bitset"* %bits) nounwind readonly ssp noredzone {
6 entry:
7 %tmp.i.i.i.i = bitcast %"class.std::bitset"* %bits to i64*
8 br label %for.cond
9
10 for.cond: ; preds = %for.inc, %entry
11 %0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
12 %conv = zext i32 %0 to i64
13 %cmp = icmp eq i64 %conv, %bsize
14 br i1 %cmp, label %return, label %for.body
15
16 for.body: ; preds = %for.cond
17 %arrayidx = getelementptr inbounds i32* %b, i64 %conv
18 %tmp5 = load i32* %arrayidx, align 4
19 %conv6 = zext i32 %tmp5 to i64
20 %rem.i.i.i.i = and i64 %conv6, 63
21 %tmp3.i = load i64* %tmp.i.i.i.i, align 8
22 %shl.i.i = shl i64 1, %rem.i.i.i.i
23 %and.i = and i64 %shl.i.i, %tmp3.i
24 %cmp.i = icmp eq i64 %and.i, 0
25 br i1 %cmp.i, label %for.inc, label %return
26
27 for.inc: ; preds = %for.body
28 %inc = add i32 %0, 1
29 br label %for.cond
30
31 return: ; preds = %for.body, %for.cond
32 ; CHECK-NOT: and
33 %retval.0 = phi i1 [ true, %for.body ], [ false, %for.cond ]
34 ret i1 %retval.0
35 }
36
37 ; This test case caused an assertion failure; see PR9324.
38 define void @func_37() noreturn nounwind ssp {
39 entry:
40 br i1 undef, label %lbl_919, label %entry.for.inc_crit_edge
41
42 entry.for.inc_crit_edge: ; preds = %entry
43 br label %for.inc
44
45 lbl_919: ; preds = %for.cond7.preheader, %entry
46 br label %for.cond7.preheader
47
48 for.cond7.preheader: ; preds = %for.inc, %lbl_919
49 %storemerge.ph = phi i8 [ 0, %lbl_919 ], [ %add, %for.inc ]
50 br i1 undef, label %for.inc, label %lbl_919
51
52 for.inc: ; preds = %for.cond7.preheader, %entry.for.inc_crit_edge
53 %add = add i8 undef, 1
54 br label %for.cond7.preheader
55 }