propagate-loop-live-out.ll
1.64 KB
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; RUN: opt -mtriple amdgcn-unknown-amdhsa -analyze -divergence -use-gpu-divergence-analysis %s | FileCheck %s
; CHECK: bb6:
; CHECK: DIVERGENT: %.126.i355.i = phi i1 [ false, %bb5 ], [ true, %bb4 ]
; CHECK: DIVERGENT: br i1 %.126.i355.i, label %bb7, label %bb8
; Function Attrs: nounwind readnone speculatable
declare i32 @llvm.amdgcn.workitem.id.x() #0
define protected amdgpu_kernel void @_Z23krnl_GPUITSFitterKerneli() {
bb0:
%i4 = call i32 @llvm.amdgcn.workitem.id.x()
%i5 = icmp eq i32 %i4, -1
br label %bb1
bb1: ; preds = %bb3, %bb0
%lsr.iv = phi i32 [ %i1, %bb3 ], [ 7, %bb0 ]
br i1 %i5, label %bb2, label %bb3
bb2: ; preds = %bb1
%lsr.iv.next = add nsw i32 %lsr.iv, -1
%i14 = icmp eq i32 %lsr.iv.next, 0
br label %bb3
bb3: ; preds = %bb2, %bb1
%i1 = phi i32 [ %lsr.iv.next, %bb2 ], [ 0, %bb1 ]
%i2 = phi i1 [ false, %bb2 ], [ true, %bb1 ]
%i3 = phi i1 [ %i14, %bb2 ], [ true, %bb1 ]
br i1 %i3, label %bb4, label %bb1
bb4: ; preds = %bb3
br i1 %i2, label %bb5, label %bb6
bb5: ; preds = %bb4
br label %bb6
bb6: ; preds = %bb5, %bb4
%.126.i355.i = phi i1 [ false, %bb5 ], [ true, %bb4 ]
br i1 %.126.i355.i, label %bb7, label %bb8
bb7: ; preds = %bb6
br label %bb8
bb8: ; preds = %bb7, %bb6
ret void
}
attributes #0 = { nounwind readnone speculatable }