llvm-mirror/test/CodeGen/AMDGPU/empty-function.ll

; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s

; Make sure we don't assert on empty functions

; SI: .text
; SI-LABEL: {{^}}empty_function_ret:
; SI: s_endpgm
; SI: codeLenInByte = 4
define void @empty_function_ret() #0 {
  ret void
}

; SI: .text
; SI-LABEL: {{^}}empty_function_unreachable:
; SI: codeLenInByte = 0
define void @empty_function_unreachable() #0 {
  unreachable
}

attributes #0 = { nounwind }
R600/SI: Add a stub GCNTargetMachine This is equivalent to the AMDGPUTargetMachine now, but it is the starting point for separating R600 and GCN functionality into separate targets. It is recommened that users start using the gcn triple for GCN-based GPUs, because using the r600 triple for these GPUs will be deprecated in the future. llvm-svn: 225277 2015-01-06 19:00:21 +01:00			`; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s \| FileCheck -check-prefix=SI %s`
R600/SI: Enable all tests that pass on VI without changes llvm-svn: 227214 2015-01-27 18:27:15 +01:00			`; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s \| FileCheck -check-prefix=SI %s`
R600: Fix assert on empty function If a function is just an unreachable, this would hit a "this is not a MachO target" assertion because of setting HasSubsectionViaSymbols. llvm-svn: 221920 2014-11-13 21:07:40 +01:00
			`; Make sure we don't assert on empty functions`

			`; SI: .text`
Call EmitFunctionHeader just before EmitFunctionBody. This avoids switching to .AMDGPU.config and back and hardcoding the section it switches back to. llvm-svn: 232479 2015-03-17 15:34:42 +01:00			`; SI-LABEL: {{^}}empty_function_ret:`
R600: Fix assert on empty function If a function is just an unreachable, this would hit a "this is not a MachO target" assertion because of setting HasSubsectionViaSymbols. llvm-svn: 221920 2014-11-13 21:07:40 +01:00			`; SI: s_endpgm`
			`; SI: codeLenInByte = 4`
			`define void @empty_function_ret() #0 {`
			`ret void`
			`}`

			`; SI: .text`
Call EmitFunctionHeader just before EmitFunctionBody. This avoids switching to .AMDGPU.config and back and hardcoding the section it switches back to. llvm-svn: 232479 2015-03-17 15:34:42 +01:00			`; SI-LABEL: {{^}}empty_function_unreachable:`
R600: Fix assert on empty function If a function is just an unreachable, this would hit a "this is not a MachO target" assertion because of setting HasSubsectionViaSymbols. llvm-svn: 221920 2014-11-13 21:07:40 +01:00			`; SI: codeLenInByte = 0`
			`define void @empty_function_unreachable() #0 {`
			`unreachable`
			`}`

			`attributes #0 = { nounwind }`