cache-icall.ll
1.83 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
; Test that the list of CFI jumptable entries is part of ThinLTO cache key.
; Linking Inputs/cache-icall.ll results in f() being added to CFI jumptable; otherwise it is not.
; This affects code generated for any users of f(). Make sure that we don't pull a stale object
; file for %t.o from the cache.
; RUN: opt -module-hash -module-summary -thinlto-bc -thinlto-split-lto-unit %s -o %t.bc
; RUN: opt -module-hash -module-summary -thinlto-bc -thinlto-split-lto-unit %p/Inputs/cache-icall.ll -o %t2.bc
; RUN: rm -Rf %t.cache && mkdir %t.cache
; RUN: llvm-lto2 run -o %t-no.o %t.bc -cache-dir %t.cache \
; RUN: -r=%t.bc,_start,px \
; RUN: -r=%t.bc,f,
; RUN: llvm-readelf -s %t-no.o.* | FileCheck %s --check-prefix=SYMBOLS-NO
; RUN: llvm-lto2 run -o %t-yes.o %t.bc %t2.bc -cache-dir %t.cache \
; RUN: -r=%t.bc,_start,px \
; RUN: -r=%t.bc,f, \
; RUN: -r=%t2.bc,f,p
; RUN: llvm-readelf -s %t-yes.o.* | FileCheck %s --check-prefix=SYMBOLS-YES
; SYMBOLS-NO-DAG: {{FUNC .* f.cfi_jt$}}
; SYMBOLS-NO-DAG: {{NOTYPE .* UND f.cfi_jt$}}
; SYMBOLS-YES-NOT: f.cfi_jt
; SYMBOLS-YES-DAG: {{FUNC .* f.cfi$}}
; SYMBOLS-YES-DAG: {{NOTYPE .* UND f.cfi$}}
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define i8* @_start(void ()* %p) !type !0 {
entry:
%0 = bitcast void ()* %p to i8*
%1 = tail call i1 @llvm.type.test(i8* %0, metadata !"_ZTSFvvE")
br i1 %1, label %cont, label %trap
trap: ; preds = %entry
tail call void @llvm.trap()
unreachable
cont: ; preds = %entry
tail call void %p()
ret i8* bitcast (void ()* @f to i8*)
}
declare i1 @llvm.type.test(i8*, metadata)
declare void @llvm.trap()
declare !type !1 void @f()
!0 = !{i64 0, !"_ZTSFPvPFvvEE"}
!1 = !{i64 0, !"_ZTSFvvE"}