55 lines
1.6 KiB
LLVM
55 lines
1.6 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnux32 -verify-machineinstrs | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnux32"
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; probe-stack + dynamic size alloca
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define void @test1(i32 %size) nounwind #0 {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0: # %start
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; CHECK-NEXT: pushq %rbp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: # kill: def $edi killed $edi def $rdi
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; CHECK-NEXT: leal 15(%rdi), %eax
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; CHECK-NEXT: andl $-16, %eax
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; CHECK-NEXT: callq __rust_probestack
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; CHECK-NEXT: subl %eax, %esp
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start:
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%alloca = alloca i8, i32 %size
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unreachable
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}
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; probe-stack + no-stack-arg-probe + dynamic size alloca
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define void @test2(i32 %size) nounwind #1 {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0: # %start
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; CHECK-NEXT: pushq %rbp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: addl $15, %edi
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; CHECK-NEXT: andl $-16, %edi
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; CHECK-NEXT: subl %edi, %esp
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start:
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%alloca = alloca i8, i32 %size
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unreachable
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}
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; probe-stack + fixed size alloca not in entry block
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define void @test3() nounwind #0 {
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; CHECK-LABEL: test3:
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; CHECK: # %bb.0: # %start
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; CHECK-NEXT: pushq %rbp
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; CHECK-NEXT: movl %esp, %ebp
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: subl $1992, %esp # imm = 0x7C8
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start:
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br label %block
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block:
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%alloca = alloca i8, i32 2000
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unreachable
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}
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attributes #0 = { "probe-stack"="__rust_probestack" }
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attributes #1 = { "probe-stack"="__rust_probestack" "no-stack-arg-probe" }
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