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Imported Upstream version 5.18.0.205
Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927
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external/llvm/test/CodeGen/AArch64/arm64-stackpointer.ll
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24
external/llvm/test/CodeGen/AArch64/arm64-stackpointer.ll
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; RUN: llc < %s -mtriple=arm64-linux-gnu | FileCheck %s
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define i64 @get_stack() nounwind {
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entry:
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; CHECK-LABEL: get_stack:
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; CHECK: mov x0, sp
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%sp = call i64 @llvm.read_register.i64(metadata !0)
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ret i64 %sp
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}
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define void @set_stack(i64 %val) nounwind {
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entry:
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; CHECK-LABEL: set_stack:
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; CHECK: mov sp, x0
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call void @llvm.write_register.i64(metadata !0, i64 %val)
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ret void
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}
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declare i64 @llvm.read_register.i64(metadata) nounwind
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declare void @llvm.write_register.i64(metadata, i64) nounwind
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; register unsigned long current_stack_pointer asm("sp");
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; CHECK-NOT: .asciz "sp"
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!0 = !{!"sp\00"}
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