a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
96 lines
2.0 KiB
LLVM
96 lines
2.0 KiB
LLVM
; Test loads of symbolic addresses when generating small-model non-PIC.
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; All addresses can be treated as PC
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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@e4 = external dso_local global i32
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@d4 = dso_local global i32 1
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@e2 = external dso_local global i32, align 2
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@d2 = dso_local global i32 1, align 2
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@e1 = external dso_local global i32, align 1
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@d1 = dso_local global i32 1, align 1
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declare dso_local void @ef()
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define dso_local void @df() {
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ret void
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}
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declare dso_local void @foo(ptr)
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; Test a load of a fully-aligned external variable.
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define dso_local ptr@f1() {
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; CHECK-LABEL: f1:
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; CHECK: larl %r2, e4
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; CHECK-NEXT: br %r14
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ret ptr@e4
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}
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; Test a load of a fully-aligned local variable.
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define dso_local ptr@f2() {
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; CHECK-LABEL: f2:
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; CHECK: larl %r2, d4
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; CHECK-NEXT: br %r14
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ret ptr@d4
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}
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; Test a load of a 2-byte-aligned external variable.
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define dso_local ptr@f3() {
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; CHECK-LABEL: f3:
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; CHECK: larl %r2, e2
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; CHECK-NEXT: br %r14
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ret ptr@e2
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}
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; Test a load of a 2-byte-aligned local variable.
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define dso_local ptr@f4() {
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; CHECK-LABEL: f4:
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; CHECK: larl %r2, d2
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; CHECK-NEXT: br %r14
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ret ptr@d2
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}
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; Test a load of an unaligned external variable, which must go via the GOT.
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define dso_local ptr@f5() {
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; CHECK-LABEL: f5:
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; CHECK: lgrl %r2, e1@GOT
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; CHECK-NEXT: br %r14
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ret ptr@e1
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}
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; Test a load of an unaligned local variable, which must go via the GOT.
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define dso_local ptr@f6() {
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; CHECK-LABEL: f6:
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; CHECK: lgrl %r2, d1@GOT
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; CHECK-NEXT: br %r14
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ret ptr@d1
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}
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; Test a load of an external function.
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define dso_local ptr@f7() {
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; CHECK-LABEL: f7:
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; CHECK: larl %r2, ef
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; CHECK-NEXT: br %r14
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ret ptr@ef
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}
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; Test a load of a local function.
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define dso_local ptr@f8() {
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; CHECK-LABEL: f8:
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; CHECK: larl %r2, df
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; CHECK-NEXT: br %r14
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ret ptr@df
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}
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; Test that LARL can be rematerialized.
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define dso_local i32 @f9() {
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; CHECK-LABEL: f9:
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; CHECK: larl %r2, d2
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; CHECK: brasl %r14, foo@PLT
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; CHECK: larl %r2, d2
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; CHECK: brasl %r14, foo@PLT
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; CHECK: br %r14
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call void @foo(ptr@d2)
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call void @foo(ptr@d2)
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ret i32 0
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}
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