source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/AArch64/got-abuse.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 851 bytes
Line 
1; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
2; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -filetype=obj -o - %s
3
4; LLVM gives well-defined semantics to this horrible construct (though C says
5; it's undefined). Regardless, we shouldn't crash. The important feature here is
6; that in general the only way to access a GOT symbol is via a 64-bit
7; load. Neither of these alternatives has the ELF relocations required to
8; support it:
9;    + ldr wD, [xN, #:got_lo12:func]
10;    + add xD, xN, #:got_lo12:func
11
12declare void @consume(i32)
13declare void @func()
14
15define void @foo() nounwind {
16; CHECK-LABEL: foo:
17entry:
18  call void @consume(i32 ptrtoint (void ()* @func to i32))
19; CHECK: adrp x[[ADDRHI:[0-9]+]], :got:func
20; CHECK: ldr {{x[0-9]+}}, [x[[ADDRHI]], {{#?}}:got_lo12:func]
21  ret void
22}
23
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