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llvm-mirror/test/CodeGen/PowerPC/available-externally.ll
Justin Hibbits 22d5b2a777 [PowerPC] Only use PLT annotations if using PIC relocation model
Summary:
The default static (non-PIC, non-PIE) model for 32-bit powerpc does not
use @PLT annotations and relocations in GCC.  LLVM shouldn't use @PLT
annotations either, because it breaks secure-PLT linking with (some
versions of?) GNU LD.

Update the available-externally.ll test to reflect that default mode should be
the same as the static relocation, by using the same check prefix.

Reviewed by:    sfertile
Differential Revision: https://reviews.llvm.org/D70570
2019-12-19 09:27:13 -06:00

51 lines
1.7 KiB
LLVM

; RUN: llc -verify-machineinstrs < %s | FileCheck %s -check-prefix=STATIC
; RUN: llc -verify-machineinstrs < %s -relocation-model=static | FileCheck %s -check-prefix=STATIC
; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -mtriple=powerpc-unknown-linux-gnu | FileCheck %s -check-prefix=PIC
; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -mtriple=powerpc-unknown-linux | FileCheck %s -check-prefix=PICELF
; RUN: llc -verify-machineinstrs < %s -relocation-model=pic -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s -check-prefix=PIC64
;;; KB: These two tests currently cause an assertion. It seems as though we cannot have a non DSOLocal symbol with dynamic-no-pic.
;;; I need to ask Sean about this.
;;; RUN-NOT: llc -verify-machineinstrs < %s -relocation-model=dynamic-no-pic -mtriple=powerpc-unknown-linux-gnu | FileCheck %s -check-prefix=DYNAMIC
;;; RUN-NOT: llc -verify-machineinstrs < %s -relocation-model=dynamic-no-pic -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s -check-prefix=DYNAMIC64
; PR4482
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"
target triple = "powerpc-unknown-linux-gnu"
define i32 @foo(i64 %x) nounwind {
entry:
; STATIC: foo:
; STATIC: bl exact_log2
; STATIC: blr
; PIC: foo:
; PIC: bl exact_log2@PLT
; PIC: blr
; PICELF: foo:
; PICELF: bl exact_log2@PLT
; PICELF: blr
; PIC64: foo:
; PIC64: bl exact_log2
; PIC64: blr
; DYNAMIC: foo:
; DYNAMIC: bl exact_log2@PLT
; DYNAMIC: blr
; DYNAMIC64: foo:
; DYNAMIC64: bl exact_log2@PPLT
; DYNAMIC64: blr
%A = call i32 @exact_log2(i64 %x) nounwind
ret i32 %A
}
define available_externally i32 @exact_log2(i64 %x) nounwind {
entry:
ret i32 42
}