Revert 52645, the loop unroller changes. It caused a regression in 252.eon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52688 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 0 insertions, 72 deletions

diff --git a/test/Transforms/LoopUnroll/multiple-phis.ll b/test/Transforms/LoopUnroll/multiple-phis.ll
deleted file mode 100644
index c3c072d47e..0000000000
--- a/test/Transforms/LoopUnroll/multiple-phis.ll
+++ /dev/null
@@ -1,51 +0,0 @@
-; RUN: llvm-as < %s | opt -loop-unroll -unroll-count 6 -unroll-threshold 300 | llvm-dis > %t
-; RUN: grep {br label \%bbe} %t | count 12
-; RUN: grep {br i1 \%z} %t | count 3
-; RUN: grep {br i1 \%q} %t | count 6
-; RUN: grep call %t | count 12
-; RUN: grep urem %t | count 6
-; RUN: grep store %t | count 6
-; RUN: grep phi %t | count 11
-; RUN: grep {lcssa = phi} %t | count 2
-
-; This testcase uses
-;  - an unknown tripcount, but a known trip multiple of 2.
-;  - an unroll count of 6, so we should get 3 conditional branches
-;    in the loop.
-;  - values defined inside the loop and used outside, by phis that
-;    also use values defined elsewhere outside the loop.
-;  - a phi inside the loop that only uses values defined
-;    inside the loop and is only used inside the loop.
-
-declare i32 @foo()
-declare i32 @bar()
-
-define i32 @fib(i32 %n, i1 %a, i32* %p) nounwind {
-entry:
-        %n2 = mul i32 %n, 2
-        br i1 %a, label %bb, label %return
-
-bb: ; loop header block
-        %t0 = phi i32 [ 0, %entry ], [ %t1, %bbe ]
-        %td = urem i32 %t0, 7
-        %q = trunc i32 %td to i1
-        br i1 %q, label %bbt, label %bbf
-bbt:
-        %bbtv = call i32 @foo()
-        br label %bbe
-bbf:
-        %bbfv = call i32 @bar()
-        br label %bbe
-bbe: ; loop latch block
-        %bbpv = phi i32 [ %bbtv, %bbt ], [ %bbfv, %bbf ]
-        store i32 %bbpv, i32* %p
-        %t1 = add i32 %t0, 1
-        %z = icmp ne i32 %t1, %n2
-        br i1 %z, label %bb, label %return
-
-return:
-        %f = phi i32 [ -2, %entry ], [ %t0, %bbe ]
-        %g = phi i32 [ -3, %entry ], [ %t1, %bbe ]
-        %h = mul i32 %f, %g
-        ret i32 %h
-}
diff --git a/test/Transforms/LoopUnroll/pr2253.ll b/test/Transforms/LoopUnroll/pr2253.ll
deleted file mode 100644
index 1ff6d27527..0000000000
--- a/test/Transforms/LoopUnroll/pr2253.ll
+++ /dev/null
@@ -1,21 +0,0 @@
-; RUN: llvm-as < %s | opt -loop-unroll -unroll-count 2 | llvm-dis | grep add | count 2
-; PR2253
-
-; There's a use outside the loop, and the PHI needs an incoming edge for
-; each unrolled iteration, since the trip count is unknown and any iteration
-; could exit.
-
-define i32 @fib(i32 %n) nounwind {
-entry:
-        br i1 false, label %bb, label %return
-
-bb:
-        %t0 = phi i32 [ 0, %entry ], [ %t1, %bb ]
-        %t1 = add i32 %t0, 1
-        %c = icmp ne i32 %t0, %n
-        br i1 %c, label %bb, label %return
-
-return:
-        %f2.0.lcssa = phi i32 [ -1, %entry ], [ %t0, %bb ]
-        ret i32 %f2.0.lcssa
-}