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llvm-6502/test/CodeGen/AArch64/arm64-basic-pic.ll

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ARM64: use GOT for weak symbols & PIC. Weak symbols cannot use the small code model's usual ADRP sequences since the instruction simply may not be able to encode a value of 0. This redirects them to use the GOT, which hopefully linkers are able to cope with even in the static relocation model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205426 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-02 14:39:11 +00:00
; RUN: llc -mtriple=arm64-none-linux-gnu -verify-machineinstrs -relocation-model=pic %s -o - | FileCheck %s
@var = global i32 0
define i32 @get_globalvar() {
; CHECK-LABEL: get_globalvar:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
%val = load i32, i32* @var
ARM64: use GOT for weak symbols & PIC. Weak symbols cannot use the small code model's usual ADRP sequences since the instruction simply may not be able to encode a value of 0. This redirects them to use the GOT, which hopefully linkers are able to cope with even in the static relocation model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205426 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-02 14:39:11 +00:00
; CHECK: adrp x[[GOTHI:[0-9]+]], :got:var
; CHECK: ldr x[[GOTLOC:[0-9]+]], [x[[GOTHI]], :got_lo12:var]
; CHECK: ldr w0, [x[[GOTLOC]]]
ret i32 %val
}
define i32* @get_globalvaraddr() {
; CHECK-LABEL: get_globalvaraddr:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
%val = load i32, i32* @var
ARM64: use GOT for weak symbols & PIC. Weak symbols cannot use the small code model's usual ADRP sequences since the instruction simply may not be able to encode a value of 0. This redirects them to use the GOT, which hopefully linkers are able to cope with even in the static relocation model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205426 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-02 14:39:11 +00:00
; CHECK: adrp x[[GOTHI:[0-9]+]], :got:var
; CHECK: ldr x0, [x[[GOTHI]], :got_lo12:var]
ret i32* @var
}
@hiddenvar = hidden global i32 0
define i32 @get_hiddenvar() {
; CHECK-LABEL: get_hiddenvar:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
%val = load i32, i32* @hiddenvar
ARM64: use GOT for weak symbols & PIC. Weak symbols cannot use the small code model's usual ADRP sequences since the instruction simply may not be able to encode a value of 0. This redirects them to use the GOT, which hopefully linkers are able to cope with even in the static relocation model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205426 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-02 14:39:11 +00:00
; CHECK: adrp x[[HI:[0-9]+]], hiddenvar
; CHECK: ldr w0, [x[[HI]], :lo12:hiddenvar]
ret i32 %val
}
define i32* @get_hiddenvaraddr() {
; CHECK-LABEL: get_hiddenvaraddr:
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00
%val = load i32, i32* @hiddenvar
ARM64: use GOT for weak symbols & PIC. Weak symbols cannot use the small code model's usual ADRP sequences since the instruction simply may not be able to encode a value of 0. This redirects them to use the GOT, which hopefully linkers are able to cope with even in the static relocation model. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205426 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-02 14:39:11 +00:00
; CHECK: adrp [[HI:x[0-9]+]], hiddenvar
; CHECK: add x0, [[HI]], :lo12:hiddenvar
ret i32* @hiddenvar
}
define void()* @get_func() {
; CHECK-LABEL: get_func:
ret void()* bitcast(void()*()* @get_func to void()*)
; CHECK: adrp x[[GOTHI:[0-9]+]], :got:get_func
; CHECK: ldr x0, [x[[GOTHI]], :got_lo12:get_func]
}
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