llvm/test/CodeGen/AMDGPU/kernarg-stack-alignment.ll
Matt Arsenault 115244a728 AMDGPU: Fix kernel argument alignment impacting stack size
Don't use AllocateStack because kernel arguments have nothing
to do with the stack. The ensureMaxAlignment call was still
changing the stack alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273080 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-18 05:15:53 +00:00

45 lines
1.0 KiB
LLVM

; RUN: llc -O0 -march=amdgcn -verify-machineinstrs < %s | FileCheck %s
; Test that the alignment of kernel arguments does not impact the
; alignment of the stack
; CHECK-LABEL: {{^}}no_args:
; CHECK: ScratchSize: 8{{$}}
define void @no_args() {
%alloca = alloca i8
store volatile i8 0, i8* %alloca
ret void
}
; CHECK-LABEL: {{^}}force_align32:
; CHECK: ScratchSize: 8{{$}}
define void @force_align32(<8 x i32>) {
%alloca = alloca i8
store volatile i8 0, i8* %alloca
ret void
}
; CHECK-LABEL: {{^}}force_align64:
; CHECK: ScratchSize: 8{{$}}
define void @force_align64(<16 x i32>) {
%alloca = alloca i8
store volatile i8 0, i8* %alloca
ret void
}
; CHECK-LABEL: {{^}}force_align128:
; CHECK: ScratchSize: 8{{$}}
define void @force_align128(<32 x i32>) {
%alloca = alloca i8
store volatile i8 0, i8* %alloca
ret void
}
; CHECK-LABEL: {{^}}force_align256:
; CHECK: ScratchSize: 8{{$}}
define void @force_align256(<64 x i32>) {
%alloca = alloca i8
store volatile i8 0, i8* %alloca
ret void
}