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https://github.com/c64scene-ar/llvm-6502.git
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fe04757f5e
rdar://10288916 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142337 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
924 B
LLVM
41 lines
924 B
LLVM
; RUN: llc < %s -mtriple=thumbv6-apple-darwin | FileCheck %s
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; Normal load from SP
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define void @SP(i32 %i) nounwind uwtable ssp {
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entry:
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; CHECK: @SP
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; CHECK: push {r7, lr}
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; CHECK-NEXT: mov r7, sp
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; CHECK-NEXT: sub sp, #4
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; CHECK-NEXT: mov r1, sp
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; CHECK-NEXT: str r0, [r1]
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; CHECK-NEXT: mov r0, sp
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; CHECK-NEXT: blx _SP_
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; CHECK-NEXT: add sp, #4
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; CHECK-NEXT: pop {r7, pc}
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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call void @SP_(i32* %i.addr)
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ret void
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}
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declare void @SP_(i32*)
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; Dynamic stack realignment
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define void @FP(double %a) nounwind uwtable ssp {
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entry:
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; CHECK: mov r4, sp
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; CHECK-NEXT: lsrs r4, r4, #3
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; CHECK-NEXT: lsls r4, r4, #3
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; CHECK-NEXT: mov sp, r4
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; Restore from FP
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; CHECK: subs r4, r7, #4
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; CHECK: mov sp, r4
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%a.addr = alloca double, align 8
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store double %a, double* %a.addr, align 8
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call void @FP_(double* %a.addr)
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ret void
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}
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declare void @FP_(double*)
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