derek.holloway
7502bf64a4
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70 lines
2.5 KiB
LLVM
70 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc < %s -mtriple=x86_64 -mattr=+push2pop2 | FileCheck %s
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; This test is to check if "pushq %rax" is emitted correctly for push2pop2
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; padding when it's built with -stack-clash-protection option.
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define i32 @foo(ptr %src1, i32 %len, ptr %src2, ptr %dst, i1 %cmp, i32 %sub) #0 {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: push2 %r15, %rbp
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: push2 %r13, %r14
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; CHECK-NEXT: .cfi_def_cfa_offset 48
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; CHECK-NEXT: push2 %rbx, %r12
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; CHECK-NEXT: .cfi_def_cfa_offset 64
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; CHECK-NEXT: subq $16, %rsp
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; CHECK-NEXT: .cfi_def_cfa_offset 80
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; CHECK-NEXT: .cfi_offset %rbx, -64
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; CHECK-NEXT: .cfi_offset %r12, -56
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; CHECK-NEXT: .cfi_offset %r13, -48
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; CHECK-NEXT: .cfi_offset %r14, -40
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; CHECK-NEXT: .cfi_offset %r15, -32
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; CHECK-NEXT: .cfi_offset %rbp, -24
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; CHECK-NEXT: movl %r9d, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Spill
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; CHECK-NEXT: movl %r8d, %ebp
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; CHECK-NEXT: movq %rcx, %r14
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; CHECK-NEXT: movq %rdx, %r15
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; CHECK-NEXT: movl %esi, %r12d
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; CHECK-NEXT: movq %rdi, %r13
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; CHECK-NEXT: xorl %ebx, %ebx
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; CHECK-NEXT: .p2align 4
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; CHECK-NEXT: .LBB0_1: # %while.body
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; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
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; CHECK-NEXT: movq %r15, %rdi
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; CHECK-NEXT: movq %r13, %rsi
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; CHECK-NEXT: movq %r14, %rdx
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; CHECK-NEXT: xorl %ecx, %ecx
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; CHECK-NEXT: movl %r12d, %r8d
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; CHECK-NEXT: callq *%rbx
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; CHECK-NEXT: testb $1, %bpl
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; CHECK-NEXT: jne .LBB0_1
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; CHECK-NEXT: # %bb.2: # %while.end
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; CHECK-NEXT: movl {{[-0-9]+}}(%r{{[sb]}}p), %eax # 4-byte Reload
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; CHECK-NEXT: addq $16, %rsp
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; CHECK-NEXT: .cfi_def_cfa_offset 64
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; CHECK-NEXT: pop2 %r12, %rbx
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; CHECK-NEXT: .cfi_def_cfa_offset 48
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; CHECK-NEXT: pop2 %r14, %r13
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: pop2 %rbp, %r15
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: popq %rcx
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: retq
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entry:
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br label %while.body
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while.body: ; preds = %while.body, %entry
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%call5 = tail call i32 null(ptr %src2, ptr %src1, ptr %dst, i32 0, i32 %len)
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br i1 %cmp, label %while.body, label %while.end
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while.end: ; preds = %while.body
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ret i32 %sub
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}
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attributes #0 = { "probe-stack"="inline-asm"}
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