37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; RUN: llc -verify-machineinstrs -O3 -mcpu=skylake -x86-align-branch-boundary=32 -x86-align-branch=call -filetype=obj < %s | llvm-objdump -d --no-show-raw-insn - | FileCheck %s
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;; This file is a companion to align-branch-boundary-suppressions.ll.
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;; It exists to demonstrate that suppressions are actually wired into the
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;; integrated assembler.
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target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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define void @test_statepoint(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK: 1: callq
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; CHECK-NEXT: 6: callq
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; CHECK-NEXT: b: callq
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; CHECK-NEXT: 10: callq
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; CHECK-NEXT: 15: callq
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; CHECK-NEXT: 1a: callq
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; CHECK-NEXT: 1f: callq
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entry:
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; Each of these will be 5 bytes, pushing the statepoint to offset=30.
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; For a normal call, this would force padding between the last normal
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; call and the safepoint, but since we've suppressed alignment that won't
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; happen for the safepoint. That's non-ideal, we'd really prefer to do
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; the alignment and just keep the label with the statepoint call. (TODO)
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call void @foo()
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call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 0, i32 0, i32 0)
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ret void
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}
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declare void @foo()
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declare zeroext i1 @return_i1()
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declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
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