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comparison test/Transforms/InstCombine/align-external.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children
comparison
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84:f3e34b893a5f 95:afa8332a0e37
1 ; RUN: opt < %s -instcombine -S | FileCheck %s 1 ; RUN: opt < %s -instcombine -S | FileCheck %s
2 2
3 ; Don't assume that external global variables or those with weak linkage have 3 ; Don't assume that external global variables or those with weak linkage have
4 ; their preferred alignment. They may only have the ABI minimum alignment. 4 ; their preferred alignment. They may only have the ABI minimum alignment.
5 5
6 ; CHECK: %s = shl i64 %a, 3
7 ; CHECK: %r = or i64 %s, ptrtoint (i32* @A to i64)
8 ; CHECK: %q = add i64 %r, 1
9 ; CHECK: ret i64 %q
10
11 target datalayout = "i32:8:32" 6 target datalayout = "i32:8:32"
12 7
13 @A = external global i32 8 @A = external global i32
14 @B = weak_odr global i32 0 9 @B = weak_odr global i32 0
10
11 @C = available_externally global <4 x i32> zeroinitializer, align 4
12 ; CHECK: @C = available_externally global <4 x i32> zeroinitializer, align 4
15 13
16 define i64 @foo(i64 %a) { 14 define i64 @foo(i64 %a) {
17 %t = ptrtoint i32* @A to i64 15 %t = ptrtoint i32* @A to i64
18 %s = shl i64 %a, 3 16 %s = shl i64 %a, 3
19 %r = or i64 %t, %s 17 %r = or i64 %t, %s
20 %q = add i64 %r, 1 18 %q = add i64 %r, 1
21 ret i64 %q 19 ret i64 %q
22 } 20 }
23 21
22 ; CHECK-LABEL: define i64 @foo(i64 %a)
23 ; CHECK: %s = shl i64 %a, 3
24 ; CHECK: %r = or i64 %s, ptrtoint (i32* @A to i64)
25 ; CHECK: %q = add i64 %r, 1
26 ; CHECK: ret i64 %q
27
24 define i32 @bar() { 28 define i32 @bar() {
25 ; CHECK-LABEL: @bar( 29 %r = load i32, i32* @B, align 1
26 %r = load i32* @B, align 1
27 ; CHECK: align 1
28 ret i32 %r 30 ret i32 %r
29 } 31 }
32
33 ; CHECK-LABEL: @bar()
34 ; CHECK: align 1
35
36 define void @vec_store() {
37 store <4 x i32> <i32 0, i32 1, i32 2, i32 3>, <4 x i32>* @C, align 4
38 ret void
39 }
40 ; CHECK: define void @vec_store()
41 ; CHECK: store <4 x i32> <i32 0, i32 1, i32 2, i32 3>, <4 x i32>* @C, align 4