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https://github.com/c64scene-ar/llvm-6502.git
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7b837d8c75
This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
680 B
LLVM
22 lines
680 B
LLVM
; RUN: llc < %s | FileCheck %s
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target triple = "arm64-apple-macosx10"
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; Check that big stacks are generated correctly.
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; Currently, this is done by a sequence of sub instructions,
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; which can encode immediate with a 12 bits mask an optionally
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; shift left (up to 12). I.e., 16773120 is the biggest value.
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; <rdar://12513931>
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; CHECK-LABEL: foo:
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; CHECK: sub sp, sp, #16773120
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; CHECK: sub sp, sp, #16773120
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; CHECK: sub sp, sp, #8192
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define void @foo() nounwind ssp {
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entry:
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%buffer = alloca [33554432 x i8], align 1
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%arraydecay = getelementptr inbounds [33554432 x i8]* %buffer, i64 0, i64 0
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call void @doit(i8* %arraydecay) nounwind
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ret void
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}
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declare void @doit(i8*)
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