Mercurial > hg > CbC > CbC_llvm

annotate llvm/test/Transforms/NewGVN/rle-must-alias.ll @ 150:1d019706d866

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
150
anatofuz
parents:
diff changeset
1 ; XFAIL: *
anatofuz
parents:
diff changeset
2 ; RUN: opt < %s -basicaa -newgvn -S | FileCheck %s
anatofuz
parents:
diff changeset
3
anatofuz
parents:
diff changeset
4 ; GVN should eliminate the fully redundant %9 GEP which
anatofuz
parents:
diff changeset
5 ; allows DEAD to be removed. This is PR3198.
anatofuz
parents:
diff changeset
6
anatofuz
parents:
diff changeset
7 ; The %7 and %4 loads combine to make %DEAD unneeded.
anatofuz
parents:
diff changeset
8 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
anatofuz
parents:
diff changeset
9 target triple = "i386-apple-darwin7"
anatofuz
parents:
diff changeset
10 @H = common global [100 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=3]
anatofuz
parents:
diff changeset
11 @G = common global i32 0 ; <i32*> [#uses=2]
anatofuz
parents:
diff changeset
12
anatofuz
parents:
diff changeset
13 define i32 @test(i32 %i) nounwind {
anatofuz
parents:
diff changeset
14 entry:
anatofuz
parents:
diff changeset
15 %0 = tail call i32 (...) @foo() nounwind ; <i32> [#uses=1]
anatofuz
parents:
diff changeset
16 %1 = icmp eq i32 %0, 0 ; <i1> [#uses=1]
anatofuz
parents:
diff changeset
17 br i1 %1, label %bb1, label %bb
anatofuz
parents:
diff changeset
18
anatofuz
parents:
diff changeset
19 bb: ; preds = %entry
anatofuz
parents:
diff changeset
20 %2 = tail call i32 (...) @bar() nounwind ; <i32> [#uses=0]
anatofuz
parents:
diff changeset
21 %3 = getelementptr [100 x i32], [100 x i32]* @H, i32 0, i32 %i ; <i32*> [#uses=1]
anatofuz
parents:
diff changeset
22 %4 = load i32, i32* %3, align 4 ; <i32> [#uses=1]
anatofuz
parents:
diff changeset
23 store i32 %4, i32* @G, align 4
anatofuz
parents:
diff changeset
24 br label %bb3
anatofuz
parents:
diff changeset
25
anatofuz
parents:
diff changeset
26 bb1: ; preds = %entry
anatofuz
parents:
diff changeset
27 %5 = tail call i32 (...) @baz() nounwind ; <i32> [#uses=0]
anatofuz
parents:
diff changeset
28 %6 = getelementptr [100 x i32], [100 x i32]* @H, i32 0, i32 %i ; <i32*> [#uses=1]
anatofuz
parents:
diff changeset
29 %7 = load i32, i32* %6, align 4 ; <i32> [#uses=2]
anatofuz
parents:
diff changeset
30 store i32 %7, i32* @G, align 4
anatofuz
parents:
diff changeset
31 %8 = icmp eq i32 %7, 0 ; <i1> [#uses=1]
anatofuz
parents:
diff changeset
32 br i1 %8, label %bb3, label %bb4
anatofuz
parents:
diff changeset
33
anatofuz
parents:
diff changeset
34 bb3: ; preds = %bb1, %bb
anatofuz
parents:
diff changeset
35 %9 = getelementptr [100 x i32], [100 x i32]* @H, i32 0, i32 %i ; <i32*> [#uses=1]
anatofuz
parents:
diff changeset
36 %DEAD = load i32, i32* %9, align 4 ; <i32> [#uses=1]
anatofuz
parents:
diff changeset
37 ; CHECK: %DEAD = phi i32 [ 0, %bb1 ], [ %4, %bb ]
anatofuz
parents:
diff changeset
38 ret i32 %DEAD
anatofuz
parents:
diff changeset
39
anatofuz
parents:
diff changeset
40 bb4: ; preds = %bb1
anatofuz
parents:
diff changeset
41 ret i32 0
anatofuz
parents:
diff changeset
42 }
anatofuz
parents:
diff changeset
43
anatofuz
parents:
diff changeset
44 declare i32 @foo(...)
anatofuz
parents:
diff changeset
45
anatofuz
parents:
diff changeset
46 declare i32 @bar(...)
anatofuz
parents:
diff changeset
47
anatofuz
parents:
diff changeset
48 declare i32 @baz(...)