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Original patch by Luke Iannini. Minor improvements and test added by Erik de Castro Lopo. Differential Revision: http://reviews.llvm.org/D6877 From: Erik de Castro Lopo <erikd@mega-nerd.com> llvm-svn: 226473
90 lines
2.6 KiB
LLVM
90 lines
2.6 KiB
LLVM
; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
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; Check the GHC call convention works (aarch64)
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@base = external global i64 ; assigned to register: r19
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@sp = external global i64 ; assigned to register: r20
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@hp = external global i64 ; assigned to register: r21
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@r1 = external global i64 ; assigned to register: r22
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@r2 = external global i64 ; assigned to register: r23
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@r3 = external global i64 ; assigned to register: r24
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@r4 = external global i64 ; assigned to register: r25
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@r5 = external global i64 ; assigned to register: r26
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@r6 = external global i64 ; assigned to register: r27
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@splim = external global i64 ; assigned to register: r28
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@f1 = external global float ; assigned to register: s8
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@f2 = external global float ; assigned to register: s9
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@f3 = external global float ; assigned to register: s10
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@f4 = external global float ; assigned to register: s11
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@d1 = external global double ; assigned to register: d12
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@d2 = external global double ; assigned to register: d13
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@d3 = external global double ; assigned to register: d14
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@d4 = external global double ; assigned to register: d15
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define ghccc i64 @addtwo(i64 %x, i64 %y) nounwind {
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entry:
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; CHECK-LABEL: addtwo
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; CHECK: add x0, x19, x20
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; CHECK-NEXT: ret
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%0 = add i64 %x, %y
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ret i64 %0
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}
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define void @zap(i64 %a, i64 %b) nounwind {
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entry:
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; CHECK-LABEL: zap
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; CHECK-NOT: mov {{x[0-9]+}}, sp
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; CHECK: bl addtwo
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; CHECK-NEXT: bl foo
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%0 = call ghccc i64 @addtwo(i64 %a, i64 %b)
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call void @foo() nounwind
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ret void
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}
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define ghccc void @foo_i64 () nounwind {
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entry:
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; CHECK-LABEL: foo_i64
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; CHECK: adrp {{x[0-9]+}}, base
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; CHECK-NEXT: ldr x19, [{{x[0-9]+}}, :lo12:base]
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; CHECK-NEXT: bl bar_i64
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; CHECK-NEXT: ret
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%0 = load i64* @base
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tail call ghccc void @bar_i64( i64 %0 ) nounwind
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ret void
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}
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define ghccc void @foo_float () nounwind {
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entry:
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; CHECK-LABEL: foo_float
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; CHECK: adrp {{x[0-9]+}}, f1
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; CHECK-NEXT: ldr s8, [{{x[0-9]+}}, :lo12:f1]
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; CHECK-NEXT: bl bar_float
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; CHECK-NEXT: ret
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%0 = load float* @f1
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tail call ghccc void @bar_float( float %0 ) nounwind
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ret void
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}
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define ghccc void @foo_double () nounwind {
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entry:
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; CHECK-LABEL: foo_double
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; CHECK: adrp {{x[0-9]+}}, d1
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; CHECK-NEXT: ldr d12, [{{x[0-9]+}}, :lo12:d1]
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; CHECK-NEXT: bl bar_double
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; CHECK-NEXT: ret
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%0 = load double* @d1
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tail call ghccc void @bar_double( double %0 ) nounwind
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ret void
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}
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declare ghccc void @foo ()
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declare ghccc void @bar_i64 (i64)
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declare ghccc void @bar_float (float)
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declare ghccc void @bar_double (double)
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