Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/CodeGen/ARM/tail-merge-branch-weight.ll

@@ -1,44 +0,0 @@
-; RUN: llc -mtriple=arm-apple-ios -print-machineinstrs=branch-folder \
-; RUN: %s -o /dev/null 2>&1 | FileCheck %s
-
-; Branch probability of tailed-merged block:
-;
-; p(L0_L1 -> L2) = p(entry -> L0) * p(L0 -> L2) + p(entry -> L1) * p(L1 -> L2)
-;                = 0.2 * 0.6 + 0.8 * 0.3 = 0.36
-; p(L0_L1 -> L3) = p(entry -> L0) * p(L0 -> L3) + p(entry -> L1) * p(L1 -> L3)
-;                = 0.2 * 0.4 + 0.8 * 0.7 = 0.64
-
-; CHECK: # Machine code for function test0:
-; CHECK: Successors according to CFG: %bb.{{[0-9]+}}({{[0-9a-fx/= ]+}}20.00%) %bb.{{[0-9]+}}({{[0-9a-fx/= ]+}}80.00%)
-; CHECK: %bb.{{[0-9]+}}:
-; CHECK: %bb.{{[0-9]+}}:
-; CHECK: # End machine code for function test0.
-
-define i32 @test0(i32 %n, i32 %m, i32* nocapture %a, i32* nocapture %b) {
-entry:
-  %cmp = icmp sgt i32 %n, 0
-  br i1 %cmp, label %L0, label %L1, !prof !0
-
-L0:                                          ; preds = %entry
-  store i32 12, i32* %a, align 4
-  store i32 18, i32* %b, align 4
-  %cmp1 = icmp eq i32 %m, 8
-  br i1 %cmp1, label %L2, label %L3, !prof !1
-
-L1:                                          ; preds = %entry
-  store i32 14, i32* %a, align 4
-  store i32 18, i32* %b, align 4
-  %cmp3 = icmp eq i32 %m, 8
-  br i1 %cmp3, label %L2, label %L3, !prof !2
-
-L2:                                               ; preds = %L1, %L0
-  br label %L3
-
-L3:                                           ; preds = %L0, %L1, %L2
-  %retval.0 = phi i32 [ 100, %L2 ], [ 6, %L1 ], [ 6, %L0 ]
-  ret i32 %retval.0
-}
-
-!0 = !{!"branch_weights", i32 200, i32 800}
-!1 = !{!"branch_weights", i32 600, i32 400}
-!2 = !{!"branch_weights", i32 300, i32 700}