Files
clang-p2996/llvm/test/Analysis/UniformityAnalysis/AMDGPU/phi-undef.ll
pvanhout ae77aceba5 [Analysis] Remove DA & LegacyDA
UniformityAnalysis offers all of the same features and much more, there is no reason left to use the legacy DAs.
See RFC: https://discourse.llvm.org/t/rfc-deprecate-divergenceanalysis-legacydivergenceanalysis/69538

- Remove LegacyDivergenceAnalysis.h/.cpp
- Remove DivergenceAnalysis.h/.cpp + Unit tests
- Remove SyncDependenceAnalysis - it was not a real registered analysis and was only used by DAs
- Remove/adjust references to the passes in the docs where applicable
- Remove TTI hook associated with those passes.
- Move tests to UniformityAnalysis folder.
  - Remove RUN lines for the DA, leave only the UA ones.
- Some tests had to be adjusted/removed depending on how they used the legacy DAs.

Reviewed By: foad, sameerds

Differential Revision: https://reviews.llvm.org/D148116
2023-04-17 09:01:22 +02:00

34 lines
900 B
LLVM

; RUN: opt -mtriple amdgcn-- -passes='print<uniformity>' -disable-output %s 2>&1 | FileCheck %s
; CHECK-LABEL: 'test1':
; CHECK: DIVERGENT: i32 %bound
; CHECK: {{^ *}} %counter =
; CHECK: DIVERGENT: %break = icmp sge i32 %counter, %bound
; CHECK: DIVERGENT: br i1 %break, label %footer, label %body
; CHECK: {{^ *}}%counter.next =
; CHECK: {{^ *}}%counter.footer =
; CHECK: DIVERGENT: br i1 %break, label %end, label %header
; Note: %counter is not divergent!
define amdgpu_ps void @test1(i32 %bound) {
entry:
br label %header
header:
%counter = phi i32 [ 0, %entry ], [ %counter.footer, %footer ]
%break = icmp sge i32 %counter, %bound
br i1 %break, label %footer, label %body
body:
%counter.next = add i32 %counter, 1
br label %footer
footer:
%counter.footer = phi i32 [ %counter.next, %body ], [ undef, %header ]
br i1 %break, label %end, label %header
end:
ret void
}