31 lines
781 B
LLVM
31 lines
781 B
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s
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; When a function does a dynamic stack allocation, the function's stack size is
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; reported as UINT64_MAX.
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; CHECK-LABEL: .section __LLVM_STACKMAPS,__llvm_stackmaps
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; CHECK-NEXT: __LLVM_StackMaps:
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; Header
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; CHECK-NEXT: .byte 3
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .short 0
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; Num Functions
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; CHECK-NEXT: .long 1
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; Num LargeConstants
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; CHECK-NEXT: .long 0
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; Num Callsites
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; CHECK-NEXT: .long 1
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; Functions and stack size
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; CHECK-NEXT: .quad _f
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; CHECK-NEXT: .quad -1
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define void @f(i32 %nelems) {
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entry:
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%mem = alloca i32, i32 %nelems
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call void (i64, i32, ...) @llvm.experimental.stackmap(i64 0, i32 0, i32* %mem)
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ret void
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}
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declare void @llvm.experimental.stackmap(i64, i32, ...)
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