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; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
; Check the GHC call convention works (aarch64)
@base = external global i64 ; assigned to register: r19
@sp = external global i64 ; assigned to register: r20
@hp = external global i64 ; assigned to register: r21
@r1 = external global i64 ; assigned to register: r22
@r2 = external global i64 ; assigned to register: r23
@r3 = external global i64 ; assigned to register: r24
@r4 = external global i64 ; assigned to register: r25
@r5 = external global i64 ; assigned to register: r26
@r6 = external global i64 ; assigned to register: r27
@splim = external global i64 ; assigned to register: r28
@f1 = external global float ; assigned to register: s8
@f2 = external global float ; assigned to register: s9
@f3 = external global float ; assigned to register: s10
@f4 = external global float ; assigned to register: s11
@d1 = external global double ; assigned to register: d12
@d2 = external global double ; assigned to register: d13
@d3 = external global double ; assigned to register: d14
@d4 = external global double ; assigned to register: d15
define ghccc i64 @addtwo(i64 %x, i64 %y) nounwind {
entry:
; CHECK-LABEL: addtwo
; CHECK: add x0, x19, x20
; CHECK-NEXT: ret
%0 = add i64 %x, %y
ret i64 %0
}
define void @zap(i64 %a, i64 %b) nounwind {
entry:
; CHECK-LABEL: zap
; CHECK-NOT: mov {{x[0-9]+}}, sp
; CHECK: bl addtwo
; CHECK-NEXT: bl foo
%0 = call ghccc i64 @addtwo(i64 %a, i64 %b)
call void @foo() nounwind
ret void
}
define ghccc void @foo_i64 () nounwind {
entry:
; CHECK-LABEL: foo_i64
; CHECK: adrp {{x[0-9]+}}, base
; CHECK-NEXT: ldr x19, [{{x[0-9]+}}, :lo12:base]
; CHECK-NEXT: bl bar_i64
; CHECK-NEXT: ret
%0 = load i64, i64* @base
tail call ghccc void @bar_i64( i64 %0 ) nounwind
ret void
}
define ghccc void @foo_float () nounwind {
entry:
; CHECK-LABEL: foo_float
; CHECK: adrp {{x[0-9]+}}, f1
; CHECK-NEXT: ldr s8, [{{x[0-9]+}}, :lo12:f1]
; CHECK-NEXT: bl bar_float
; CHECK-NEXT: ret
%0 = load float, float* @f1
tail call ghccc void @bar_float( float %0 ) nounwind
ret void
}
define ghccc void @foo_double () nounwind {
entry:
; CHECK-LABEL: foo_double
; CHECK: adrp {{x[0-9]+}}, d1
; CHECK-NEXT: ldr d12, [{{x[0-9]+}}, :lo12:d1]
; CHECK-NEXT: bl bar_double
; CHECK-NEXT: ret
%0 = load double, double* @d1
tail call ghccc void @bar_double( double %0 ) nounwind
ret void
}
declare ghccc void @foo ()
declare ghccc void @bar_i64 (i64)
declare ghccc void @bar_float (float)
declare ghccc void @bar_double (double)
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