Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/LoopUnroll/2011-08-09-PhiUpdate.ll

@@ -1,62 +0,0 @@
-; RUN: opt -S < %s -instcombine -inline -jump-threading -loop-unroll -unroll-count=4 | FileCheck %s
-;
-; This is a test case that required a number of setup passes because
-; it depends on block order.
-
-target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
-target triple = "x86_64-apple-macosx10.6.8"
-
-declare i1 @check() nounwind
-declare i32 @getval() nounwind
-
-; Check that the loop exit merges values from all the iterations. This
-; could be a tad fragile, but it's a good test.
-;
-; CHECK-LABEL: @foo(
-; CHECK: return:
-; CHECK: %retval.0 = phi i32 [ %tmp7.i, %land.lhs.true ], [ 0, %do.cond ], [ %tmp7.i.1, %land.lhs.true.1 ], [ 0, %do.cond.1 ], [ %tmp7.i.2, %land.lhs.true.2 ], [ 0, %do.cond.2 ], [ %tmp7.i.3, %land.lhs.true.3 ], [ 0, %do.cond.3 ]
-; CHECK-NOT: @bar(
-; CHECK: bar.exit.3
-define i32 @foo() uwtable ssp align 2 {
-entry:
-  br i1 undef, label %return, label %if.end
-
-if.end:                                           ; preds = %entry
-  %call2 = call i32 @getval()
-  br label %do.body
-
-do.body:                                          ; preds = %do.cond, %if.end
-  %call6 = call i32 @bar()
-  %cmp = icmp ne i32 %call6, 0
-  br i1 %cmp, label %land.lhs.true, label %do.cond
-
-land.lhs.true:                                    ; preds = %do.body
-  %call10 = call i32 @getval()
-  %cmp11 = icmp eq i32 0, %call10
-  br i1 %cmp11, label %return, label %do.cond
-
-do.cond:                                          ; preds = %land.lhs.true, %do.body
-  %cmp18 = icmp sle i32 0, %call2
-  br i1 %cmp18, label %do.body, label %return
-
-return:                                           ; preds = %do.cond, %land.lhs.true, %entry
-  %retval.0 = phi i32 [ 0, %entry ], [ %call6, %land.lhs.true ], [ 0, %do.cond ]
-  ret i32 %retval.0
-}
-
-define linkonce_odr i32 @bar() nounwind uwtable ssp align 2 {
-entry:
-  br i1 undef, label %land.lhs.true, label %cond.end
-
-land.lhs.true:                                    ; preds = %entry
-  %cmp4 = call zeroext i1 @check()
-  br i1 %cmp4, label %cond.true, label %cond.end
-
-cond.true:                                        ; preds = %land.lhs.true
-  %tmp7 = call i32 @getval()
-  br label %cond.end
-
-cond.end:                                         ; preds = %cond.true, %land.lhs.true, %entry
-  %cond = phi i32 [ %tmp7, %cond.true ], [ 0, %land.lhs.true ], [ 0, %entry ]
-  ret i32 %cond
-}