mirror of
https://github.com/jeremysrand/llvm-65816.git
synced 2024-11-18 23:05:00 +00:00
96 lines
1.9 KiB
LLVM
96 lines
1.9 KiB
LLVM
|
; Test loads of symbolic addresses when generating small-model non-PIC.
|
||
|
|
; All addresses can be treated as PC
|
||
|
|
;
|
||
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
||
|
|
|
||
|
|
@e4 = external global i32
|
||
|
|
@d4 = global i32 1
|
||
|
|
@e2 = external global i32, align 2
|
||
|
|
@d2 = global i32 1, align 2
|
||
|
|
@e1 = external global i32, align 1
|
||
|
|
@d1 = global i32 1, align 1
|
||
|
|
|
||
|
|
declare void @ef()
|
||
|
|
define void @df() {
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @foo(i32 *)
|
||
|
|
|
||
|
|
; Test a load of a fully-aligned external variable.
|
||
|
|
define i32 *@f1() {
|
||
|
|
; CHECK-LABEL: f1:
|
||
|
|
; CHECK: larl %r2, e4
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret i32 *@e4
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of a fully-aligned local variable.
|
||
|
|
define i32 *@f2() {
|
||
|
|
; CHECK-LABEL: f2:
|
||
|
|
; CHECK: larl %r2, d4
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret i32 *@d4
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of a 2-byte-aligned external variable.
|
||
|
|
define i32 *@f3() {
|
||
|
|
; CHECK-LABEL: f3:
|
||
|
|
; CHECK: larl %r2, e2
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret i32 *@e2
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of a 2-byte-aligned local variable.
|
||
|
|
define i32 *@f4() {
|
||
|
|
; CHECK-LABEL: f4:
|
||
|
|
; CHECK: larl %r2, d2
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret i32 *@d2
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of an unaligned external variable, which must go via the GOT.
|
||
|
|
define i32 *@f5() {
|
||
|
|
; CHECK-LABEL: f5:
|
||
|
|
; CHECK: lgrl %r2, e1@GOT
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret i32 *@e1
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of an unaligned local variable, which must go via the GOT.
|
||
|
|
define i32 *@f6() {
|
||
|
|
; CHECK-LABEL: f6:
|
||
|
|
; CHECK: lgrl %r2, d1@GOT
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret i32 *@d1
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of an external function.
|
||
|
|
define void() *@f7() {
|
||
|
|
; CHECK-LABEL: f7:
|
||
|
|
; CHECK: larl %r2, ef
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret void() *@ef
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test a load of a local function.
|
||
|
|
define void() *@f8() {
|
||
|
|
; CHECK-LABEL: f8:
|
||
|
|
; CHECK: larl %r2, df
|
||
|
|
; CHECK-NEXT: br %r14
|
||
|
|
ret void() *@df
|
||
|
|
}
|
||
|
|
|
||
|
|
; Test that LARL can be rematerialized.
|
||
|
|
define i32 @f9() {
|
||
|
|
; CHECK-LABEL: f9:
|
||
|
|
; CHECK: larl %r2, d2
|
||
|
|
; CHECK: brasl %r14, foo@PLT
|
||
|
|
; CHECK: larl %r2, d2
|
||
|
|
; CHECK: brasl %r14, foo@PLT
|
||
|
|
; CHECK: br %r14
|
||
|
|
call void @foo(i32 *@d2)
|
||
|
|
call void @foo(i32 *@d2)
|
||
|
|
ret i32 0
|
||
|
|
}
|