xref: /llvm-project/llvm/test/ExecutionEngine/Orc/global-variable-alignment.ll (revision 1fb99dedd711c343f01a959f1a843cc92a3002b0)
1563ce9aaSLang Hames; Check that lli respects alignment on global variables.
2563ce9aaSLang Hames;
3563ce9aaSLang Hames; Returns ((uint32_t)&B & 0x7) - A + C. Variables A and C have byte-alignment,
4563ce9aaSLang Hames; and are intended to increase the chance of misalignment, but don't contribute
5563ce9aaSLang Hames; to the result, since they have the same initial value.
6563ce9aaSLang Hames;
7563ce9aaSLang Hames; A failure may indicate a problem with alignment handling in the JIT linker or
8563ce9aaSLang Hames; JIT memory manager.
9563ce9aaSLang Hames;
10563ce9aaSLang Hames; RUN: %lli %s
11563ce9aaSLang Hames
12563ce9aaSLang Hames@A = internal global i8 1, align 1
13563ce9aaSLang Hames@B = global i64 1, align 8
14563ce9aaSLang Hames@C = internal global i8 1, align 1
15563ce9aaSLang Hames
16563ce9aaSLang Hamesdefine i32 @main(i32 %argc, i8** %argv) {
17563ce9aaSLang Hamesentry:
18563ce9aaSLang Hames  %0 = ptrtoint i8* @B to i32
19563ce9aaSLang Hames  %1 = and i32 %0, 7
20563ce9aaSLang Hames  %2 = load i8, i8* @A
21563ce9aaSLang Hames  %3 = zext i8 %2 to i32
22563ce9aaSLang Hames  %4 = add i32 %1, %3
23*1fb99dedSLang Hames  %5 = load i8, i8* @C
24563ce9aaSLang Hames  %6 = zext i8 %5 to i32
25563ce9aaSLang Hames  %7 = sub i32 %4, %6
26563ce9aaSLang Hames  ret i32 %7
27563ce9aaSLang Hames}
28