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llvm-mirror/test/ThinLTO/X86/linkonce_resolution_comdat.ll
Eric Christopher e864dd4497 For X86-64 linux and PPC64 linux align int128 to 16 bytes.
For other platforms we should find out what they need and likely
make the same change, however, a smaller additional change is easier
for platforms we know have it specified	in the ABI. As part of this
rewrite some of the handling in the backends for data layout and update
a bunch of testcases.

Based on a patch by Simonas Kazlauskas!

llvm-svn: 294702
2017-02-10 03:32:21 +00:00

32 lines
1.3 KiB
LLVM

; This test ensures that we drop the preempted copy of @f from %t2.bc from its
; comdat after making it available_externally. If not we would get a
; verification error.
; RUN: opt -module-summary %s -o %t1.bc
; RUN: opt -module-summary %p/Inputs/linkonce_resolution_comdat.ll -o %t2.bc
; RUN: llvm-lto -thinlto-action=run %t1.bc %t2.bc -exported-symbol=f -exported-symbol=g -thinlto-save-temps=%t3.
; RUN: llvm-dis %t3.0.3.imported.bc -o - | FileCheck %s --check-prefix=IMPORT1
; RUN: llvm-dis %t3.1.3.imported.bc -o - | FileCheck %s --check-prefix=IMPORT2
; Copy from first module is prevailing and converted to weak_odr, copy
; from second module is preempted and converted to available_externally and
; removed from comdat.
; IMPORT1: define weak_odr i32 @f(i8*) unnamed_addr comdat($c1) {
; IMPORT2: define available_externally i32 @f(i8*) unnamed_addr {
; RUN: llvm-nm -o - < %t1.bc.thinlto.o | FileCheck %s --check-prefix=NM1
; NM1: W f
; RUN: llvm-nm -o - < %t2.bc.thinlto.o | FileCheck %s --check-prefix=NM2
; f() would have been turned into available_externally since it is preempted,
; and inlined into g()
; NM2-NOT: f
target datalayout = "e-m:e-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
$c1 = comdat any
define linkonce_odr i32 @f(i8*) unnamed_addr comdat($c1) {
ret i32 43
}