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llvm-project/llvm/test/CodeGen/X86/coalescer-win64.ll

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[X86] Add RIP to GR64_TCW64 The MachineVerifier wants to check that the register operands of an instruction belong to the instruction's register class. RIP-relative control flow instructions violated this by referencing RIP. While this was fixed for SysV, it was never fixed for Win64. llvm-svn: 254315
2015-12-01 03:04:19 +08:00
; RUN: llc < %s -verify-coalescing | FileCheck %s
target triple = "x86_64-pc-win32"
@fnptr = external global void ()*
define void @test1() {
entry:
%p = load void ()*, void ()** @fnptr
tail call void %p()
ret void
}
; CHECK-LABEL: test1{{$}}
Win64: Don't emit unwind info for "leaf" functions (PR30337) According to MSDN (see the PR), functions which don't touch any callee-saved registers (including %rsp) don't need any unwind info. This patch makes LLVM not emit unwind info for such functions, to save binary size. Differential Revision: https://reviews.llvm.org/D24748 llvm-svn: 282185
2016-09-23 03:50:05 +08:00
; CHECK-NOT: .seh_proc test1
[X86] Add RIP to GR64_TCW64 The MachineVerifier wants to check that the register operands of an instruction belong to the instruction's register class. RIP-relative control flow instructions violated this by referencing RIP. While this was fixed for SysV, it was never fixed for Win64. llvm-svn: 254315
2015-12-01 03:04:19 +08:00
; CHECK: rex64 jmpq *fnptr(%rip)
Win64: Don't emit unwind info for "leaf" functions (PR30337) According to MSDN (see the PR), functions which don't touch any callee-saved registers (including %rsp) don't need any unwind info. This patch makes LLVM not emit unwind info for such functions, to save binary size. Differential Revision: https://reviews.llvm.org/D24748 llvm-svn: 282185
2016-09-23 03:50:05 +08:00
; CHECK-NOT: .seh_endproc