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llvm-project/llvm/test/ThinLTO/X86/personality-local.ll

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[lib/Analysis] - Mark personality functions as live. This is PR33245. Case I am fixing is next: Imagine we have 2 BC files, one defines and uses personality routine, second has only declaration and also uses it. Previously algorithm computing dead symbols (llvm::computeDeadSymbols) did not know about personality routines and leaved them dead even if function that has routine was live. As a result thinLTOInternalizeAndPromoteGUID() method changed binding for such symbol to local. Later when LLD tried to link these objects it failed because one object had undefined global symbol for routine and second object contained local definition instead of global. Patch set the live root flag on the corresponding FunctionSummary for personality routines when we build the per-module summaries during the compile step. Differential revision: https://reviews.llvm.org/D36834 llvm-svn: 311432
2017-08-22 16:50:56 +08:00
; RUN: opt -module-summary %s -o %t1.bc
; RUN: opt -module-summary %S/Inputs/personality-local.ll -o %t2.bc
; RUN: llvm-lto2 run -o %t.o %t1.bc %t2.bc -save-temps \
; RUN: -r %t2.bc,foo,p \
; RUN: -r %t1.bc,foo,l \
; RUN: -r %t1.bc,bar,p \
; RUN: -r %t1.bc,main,xp
[llvm-readobj] Change -t to --symbols in tests. NFC -t is --symbols in llvm-readobj but --section-details (unimplemented) in readelf. The confusing option should not be used since we aim for improving compatibility. Keep just one llvm-readobj -t use case in test/tools/llvm-readobj/symbols.test llvm-svn: 359661
2019-05-01 17:28:24 +08:00
; RUN: llvm-readobj --symbols %t.o.2 | FileCheck %s
[lib/Analysis] - Mark personality functions as live. This is PR33245. Case I am fixing is next: Imagine we have 2 BC files, one defines and uses personality routine, second has only declaration and also uses it. Previously algorithm computing dead symbols (llvm::computeDeadSymbols) did not know about personality routines and leaved them dead even if function that has routine was live. As a result thinLTOInternalizeAndPromoteGUID() method changed binding for such symbol to local. Later when LLD tried to link these objects it failed because one object had undefined global symbol for routine and second object contained local definition instead of global. Patch set the live root flag on the corresponding FunctionSummary for personality routines when we build the per-module summaries during the compile step. Differential revision: https://reviews.llvm.org/D36834 llvm-svn: 311432
2017-08-22 16:50:56 +08:00
; CHECK: Symbol {
; CHECK: Name: foo
; CHECK-NEXT: Value: 0x0
; CHECK-NEXT: Size: 1
; CHECK-NEXT: Binding: Global
; CHECK-NEXT: Type: Function
; CHECK-NEXT: Other: 0
; CHECK-NEXT: Section: .text
; CHECK-NEXT: }
Reland "Change the X86 datalayout to add three address spaces for 32 bit signed, 32 bit unsigned, and 64 bit pointers." This reverts 57076d3199fc2b0af4a3736b7749dd5462cacda5. Original review at https://reviews.llvm.org/D64931. Review for added fix at https://reviews.llvm.org/D66843. llvm-svn: 371568
2019-09-11 07:15:38 +08:00
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
[lib/Analysis] - Mark personality functions as live. This is PR33245. Case I am fixing is next: Imagine we have 2 BC files, one defines and uses personality routine, second has only declaration and also uses it. Previously algorithm computing dead symbols (llvm::computeDeadSymbols) did not know about personality routines and leaved them dead even if function that has routine was live. As a result thinLTOInternalizeAndPromoteGUID() method changed binding for such symbol to local. Later when LLD tried to link these objects it failed because one object had undefined global symbol for routine and second object contained local definition instead of global. Patch set the live root flag on the corresponding FunctionSummary for personality routines when we build the per-module summaries during the compile step. Differential revision: https://reviews.llvm.org/D36834 llvm-svn: 311432
2017-08-22 16:50:56 +08:00
target triple = "x86_64-pc-linux-gnu"
declare void @foo()
define void @bar() personality i32 (i32, i32, i64, i8*, i8*)* @personality_routine {
ret void
}
define internal i32 @personality_routine(i32, i32, i64, i8*, i8*) {
call void @foo()
ret i32 0
}
define i32 @main() {
call void @bar()
ret i32 0
}