Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/CodeGen/AMDGPU/tti-unroll-prefs.ll

@@ -1,58 +0,0 @@
-; RUN: opt -loop-unroll -S -mtriple=amdgcn-- -mcpu=tahiti %s | FileCheck %s
-
-; This IR comes from this OpenCL C code:
-;
-; if (b + 4 > a) {
-;   for (int i = 0; i < 4; i++, b++) {
-;     if (b + 1 <= a)
-;       *(dst + c + b) = 0;
-;     else
-;       break;
-;   }
-; }
-;
-; This test is meant to check that this loop isn't unrolled into more than
-; four iterations.  The loop unrolling preferences we currently use cause this
-; loop to not be unrolled at all, but that may change in the future.
-
-; CHECK-LABEL: @test
-; CHECK: store i8 0, i8 addrspace(1)*
-; CHECK-NOT: store i8 0, i8 addrspace(1)*
-; CHECK: ret void
-define amdgpu_kernel void @test(i8 addrspace(1)* nocapture %dst, i32 %a, i32 %b, i32 %c) {
-entry:
-  %add = add nsw i32 %b, 4
-  %cmp = icmp sgt i32 %add, %a
-  br i1 %cmp, label %for.cond.preheader, label %if.end7
-
-for.cond.preheader:                               ; preds = %entry
-  %cmp313 = icmp slt i32 %b, %a
-  br i1 %cmp313, label %if.then4.lr.ph, label %if.end7.loopexit
-
-if.then4.lr.ph:                                   ; preds = %for.cond.preheader
-  %0 = sext i32 %c to i64
-  br label %if.then4
-
-if.then4:                                         ; preds = %if.then4.lr.ph, %if.then4
-  %i.015 = phi i32 [ 0, %if.then4.lr.ph ], [ %inc, %if.then4 ]
-  %b.addr.014 = phi i32 [ %b, %if.then4.lr.ph ], [ %add2, %if.then4 ]
-  %add2 = add nsw i32 %b.addr.014, 1
-  %1 = sext i32 %b.addr.014 to i64
-  %add.ptr.sum = add nsw i64 %1, %0
-  %add.ptr5 = getelementptr inbounds i8, i8 addrspace(1)* %dst, i64 %add.ptr.sum
-  store i8 0, i8 addrspace(1)* %add.ptr5, align 1
-  %inc = add nsw i32 %i.015, 1
-  %cmp1 = icmp slt i32 %inc, 4
-  %cmp3 = icmp slt i32 %add2, %a
-  %or.cond = and i1 %cmp3, %cmp1
-  br i1 %or.cond, label %if.then4, label %for.cond.if.end7.loopexit_crit_edge
-
-for.cond.if.end7.loopexit_crit_edge:              ; preds = %if.then4
-  br label %if.end7.loopexit
-
-if.end7.loopexit:                                 ; preds = %for.cond.if.end7.loopexit_crit_edge, %for.cond.preheader
-  br label %if.end7
-
-if.end7:                                          ; preds = %if.end7.loopexit, %entry
-  ret void
-}