Temporarily Revert "Add basic loop fusion pass."

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

1 files changed, 0 insertions, 289 deletions

diff --git a/llvm/test/Transforms/IndVarSimplify/post-inc-range.ll b/llvm/test/Transforms/IndVarSimplify/post-inc-range.ll
deleted file mode 100644
index d859eb28e78..00000000000
--- a/llvm/test/Transforms/IndVarSimplify/post-inc-range.ll
+++ /dev/null
@@ -1,289 +0,0 @@
-; RUN: opt < %s -indvars -indvars-post-increment-ranges -S | FileCheck %s
-
-target datalayout = "p:64:64:64-n32:64"
-
-; When the IV in this loop is widened we want to widen this use as well:
-; icmp slt i32 %i.inc, %limit
-; In order to do this indvars need to prove that the narrow IV def (%i.inc)
-; is not-negative from the range check inside of the loop.
-define void @test(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test(
-; CHECK-NOT: trunc
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %within_limits = icmp ult i32 %i, 64
-  br i1 %within_limits, label %continue, label %for.end
-
-continue:
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-define void @test_false_edge(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_false_edge(
-; CHECK-NOT: trunc
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %out_of_bounds = icmp ugt i32 %i, 64
-  br i1 %out_of_bounds, label %for.end, label %continue
-
-continue:
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-define void @test_range_metadata(i32* %array_length_ptr, i32* %base,
-                                 i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_range_metadata(
-; CHECK-NOT: trunc
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %array_length = load i32, i32* %array_length_ptr, !range !{i32 0, i32 64 }
-  %within_limits = icmp ult i32 %i, %array_length
-  br i1 %within_limits, label %continue, label %for.end
-
-continue:
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-; Negative version of the test above, we don't know anything about
-; array_length_ptr range.
-define void @test_neg(i32* %array_length_ptr, i32* %base,
-                      i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_neg(
-; CHECK: trunc i64
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %array_length = load i32, i32* %array_length_ptr
-  %within_limits = icmp ult i32 %i, %array_length
-  br i1 %within_limits, label %continue, label %for.end
-
-continue:
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-define void @test_transitive_use(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_transitive_use(
-; CHECK-NOT: trunc
-; CHECK: %result = icmp slt i64
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %within_limits = icmp ult i32 %i, 64
-  br i1 %within_limits, label %continue, label %for.end
-
-continue:
-  %i.mul.3 = mul nsw nuw i32 %i, 3
-  %mul_within = icmp ult i32 %i.mul.3, 64
-  br i1 %mul_within, label %guarded, label %continue.2
-  
-guarded:
-  %i.mul.3.inc = add nsw nuw i32 %i.mul.3, 1
-  %result = icmp slt i32 %i.mul.3.inc, %limit
-  br i1 %result, label %continue.2, label %for.end
-
-continue.2:
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-declare void @llvm.experimental.guard(i1, ...)
-
-define void @test_guard_one_bb(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_guard_one_bb(
-; CHECK-NOT: trunc
-; CHECK-NOT: icmp slt i32
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.body ]
-  %within_limits = icmp ult i32 %i, 64
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  call void(i1, ...) @llvm.experimental.guard(i1 %within_limits) [ "deopt"() ]
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-define void @test_guard_in_the_same_bb(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_guard_in_the_same_bb(
-; CHECK-NOT: trunc
-; CHECK-NOT: icmp slt i32
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %within_limits = icmp ult i32 %i, 64
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  call void(i1, ...) @llvm.experimental.guard(i1 %within_limits) [ "deopt"() ]
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-define void @test_guard_in_idom(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_guard_in_idom(
-; CHECK-NOT: trunc
-; CHECK-NOT: icmp slt i32
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.inc ]
-  %within_limits = icmp ult i32 %i, 64
-  call void(i1, ...) @llvm.experimental.guard(i1 %within_limits) [ "deopt"() ]
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  br label %for.inc
-
-for.inc:
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}
-
-define void @test_guard_merge_ranges(i32* %base, i32 %limit, i32 %start) {
-; CHECK-LABEL: @test_guard_merge_ranges(
-; CHECK-NOT: trunc
-; CHECK-NOT: icmp slt i32
-
-for.body.lr.ph:
-  br label %for.body
-
-for.body:
-  %i = phi i32 [ %start, %for.body.lr.ph ], [ %i.inc, %for.body ]
-  %within_limits.1 = icmp ult i32 %i, 64
-  call void(i1, ...) @llvm.experimental.guard(i1 %within_limits.1) [ "deopt"() ]
-  %within_limits.2 = icmp ult i32 %i, 2147483647
-  call void(i1, ...) @llvm.experimental.guard(i1 %within_limits.2) [ "deopt"() ]
-  %i.i64 = zext i32 %i to i64
-  %arrayidx = getelementptr inbounds i32, i32* %base, i64 %i.i64
-  %val = load i32, i32* %arrayidx, align 4
-  %i.inc = add nsw nuw i32 %i, 1
-  %cmp = icmp slt i32 %i.inc, %limit
-  br i1 %cmp, label %for.body, label %for.end
-
-for.end:
-  br label %exit
-
-exit:
-  ret void
-}