8cc6c2e80f
andorbitset.ll is interesting since it directly depends on the difference between poison and undef. Not sure it's useful to keep the version using poison, I assume none of this code makes it to codegen. si-spill-cf.ll was also a nasty case, which I doubt has been reproducing its original issue for a very long time. I had to reclaim an older version, replace some of the poison uses, and run simplify-cfg. There's a very slight change in the final CFG with this, but final the output is approximately the same as it used to be.
37 lines
844 B
LLVM
37 lines
844 B
LLVM
; RUN: llc -mtriple=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
|
|
; RUN: llc -mtriple=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
|
|
|
|
; SILowerI1Copies was not handling IMPLICIT_DEF
|
|
; SI-LABEL: {{^}}br_poison:
|
|
; SI: %bb.0:
|
|
; SI-NEXT: s_cbranch_scc1
|
|
define amdgpu_kernel void @br_poison(ptr addrspace(1) %out, i32 %arg) #0 {
|
|
bb:
|
|
br i1 poison, label %bb1, label %bb2
|
|
|
|
bb1:
|
|
store volatile i32 123, ptr addrspace(1) %out
|
|
ret void
|
|
|
|
bb2:
|
|
ret void
|
|
}
|
|
|
|
; SI-LABEL: {{^}}br_freeze_poison:
|
|
; SI: %bb.0:
|
|
; SI-NEXT: s_cbranch_scc1
|
|
define amdgpu_kernel void @br_freeze_poison(ptr addrspace(1) %out, i32 %arg) #0 {
|
|
bb:
|
|
%undef = freeze i1 poison
|
|
br i1 %undef, label %bb1, label %bb2
|
|
|
|
bb1:
|
|
store volatile i32 123, ptr addrspace(1) %out
|
|
ret void
|
|
|
|
bb2:
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|