86 lines
1.6 KiB
LLVM
86 lines
1.6 KiB
LLVM
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; Test loads of symbolic addresses in PIC code.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -relocation-model=pic | FileCheck %s
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@ev = external global i32
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@dv = global i32 0
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@pv = protected global i32 0
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@hv = hidden global i32 0
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declare void @ef()
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define void @df() {
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ret void
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}
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define protected void @pf() {
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ret void
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}
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define hidden void @hf() {
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ret void
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}
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; Test loads of external variables, which must go via the GOT.
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define i32 *@f1() {
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; CHECK-LABEL: f1:
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; CHECK: lgrl %r2, ev@GOT
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; CHECK: br %r14
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ret i32 *@ev
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}
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; Check loads of locally-defined normal-visibility variables, which might
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; be overridden. The load must go via the GOT.
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define i32 *@f2() {
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; CHECK-LABEL: f2:
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; CHECK: lgrl %r2, dv@GOT
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; CHECK: br %r14
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ret i32 *@dv
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}
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; Check loads of protected variables, which in the small code model
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; must be in range of LARL.
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define i32 *@f3() {
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; CHECK-LABEL: f3:
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; CHECK: larl %r2, pv
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; CHECK: br %r14
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ret i32 *@pv
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}
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; ...likewise hidden variables.
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define i32 *@f4() {
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; CHECK-LABEL: f4:
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; CHECK: larl %r2, hv
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; CHECK: br %r14
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ret i32 *@hv
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}
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; Like f1, but for functions.
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define void() *@f5() {
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; CHECK-LABEL: f5:
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; CHECK: lgrl %r2, ef@GOT
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; CHECK: br %r14
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ret void() *@ef
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}
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; Like f2, but for functions.
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define void() *@f6() {
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; CHECK-LABEL: f6:
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; CHECK: lgrl %r2, df@GOT
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; CHECK: br %r14
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ret void() *@df
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}
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; Like f3, but for functions.
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define void() *@f7() {
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; CHECK-LABEL: f7:
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; CHECK: larl %r2, pf
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; CHECK: br %r14
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ret void() *@pf
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}
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; Like f4, but for functions.
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define void() *@f8() {
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; CHECK-LABEL: f8:
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; CHECK: larl %r2, hf
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; CHECK: br %r14
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ret void() *@hf
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}
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