Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/LoopStrengthReduce/post-inc-optsize.ll

@@ -1,43 +0,0 @@
-; RUN: opt < %s -loop-reduce -S | FileCheck %s
-
-target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
-target triple = "thumbv7m-arm-none-eabi"
-
-; Check that the IV updates (incdec.ptr{,1,2}) are kept in the latch block
-; and not moved to the header/exiting block. Inserting them in the header
-; doubles register pressure and adds moves.
-
-; CHECK-LABEL: @f
-; CHECK: while.cond:
-; CHECK: icmp sgt i32 %n.addr.0, 0
-; CHECK: while.body:
-; CHECK: incdec.ptr =
-; CHECK: incdec.ptr1 =
-; CHECK: incdec.ptr2 =
-; CHECK: dec = 
-define void @f(float* nocapture readonly %a, float* nocapture readonly %b, float* nocapture %c, i32 %n) {
-entry:
-  br label %while.cond
-
-while.cond:                                       ; preds = %while.body, %entry
-  %a.addr.0 = phi float* [ %a, %entry ], [ %incdec.ptr, %while.body ]
-  %b.addr.0 = phi float* [ %b, %entry ], [ %incdec.ptr1, %while.body ]
-  %c.addr.0 = phi float* [ %c, %entry ], [ %incdec.ptr2, %while.body ]
-  %n.addr.0 = phi i32 [ %n, %entry ], [ %dec, %while.body ]
-  %cmp = icmp sgt i32 %n.addr.0, 0
-  br i1 %cmp, label %while.body, label %while.end
-
-while.body:                                       ; preds = %while.cond
-  %incdec.ptr = getelementptr inbounds float, float* %a.addr.0, i32 1
-  %tmp = load float, float* %a.addr.0, align 4
-  %incdec.ptr1 = getelementptr inbounds float, float* %b.addr.0, i32 1
-  %tmp1 = load float, float* %b.addr.0, align 4
-  %add = fadd float %tmp, %tmp1
-  %incdec.ptr2 = getelementptr inbounds float, float* %c.addr.0, i32 1
-  store float %add, float* %c.addr.0, align 4
-  %dec = add nsw i32 %n.addr.0, -1
-  br label %while.cond
-
-while.end:                                        ; preds = %while.cond
-  ret void
-}