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, 63 deletions

diff --git a/llvm/test/Transforms/IndVarSimplify/rewrite-loop-exit-value.ll b/llvm/test/Transforms/IndVarSimplify/rewrite-loop-exit-value.ll
deleted file mode 100644
index 6993946b951..00000000000
--- a/llvm/test/Transforms/IndVarSimplify/rewrite-loop-exit-value.ll
+++ /dev/null
@@ -1,63 +0,0 @@
-; RUN: opt -indvars -instcombine -S < %s | FileCheck %s
-
-;; Test that loop's exit value is rewritten to its initial
-;; value from loop preheader
-define i32 @test1(i32* %var) {
-; CHECK-LABEL: @test1
-entry:
- %cond = icmp eq i32* %var, null 
- br label %header
-
-header:
- %phi_indvar = phi i32 [0, %entry], [%indvar, %loop]
- br i1 %cond, label %loop, label %exit
-
-loop:
- %indvar = add i32 %phi_indvar, 1
- br label %header
-
-exit:
-; CHECK: ret i32 0
- ret i32 %phi_indvar
-}
-
-;; Test that we can not rewrite loop exit value if it's not
-;; a phi node (%indvar is an add instruction in this test).
-define i32 @test2(i32* %var) {
-; CHECK-LABEL: @test2
-entry:
- %cond = icmp eq i32* %var, null 
- br label %header
-
-header:
- %phi_indvar = phi i32 [0, %entry], [%indvar, %header]
- %indvar = add i32 %phi_indvar, 1
- br i1 %cond, label %header, label %exit
-
-exit:
-; CHECK: ret i32 %indvar
- ret i32 %indvar
-}
-
-;; Test that we can not rewrite loop exit value if the condition
-;; is not in loop header.
-define i32 @test3(i32* %var) {
-; CHECK-LABEL: @test3
-entry:
- %cond1 = icmp eq i32* %var, null 
- br label %header
-
-header:
- %phi_indvar = phi i32 [0, %entry], [%indvar, %header], [%indvar, %body]
- %indvar = add i32 %phi_indvar, 1
- %cond2 = icmp eq i32 %indvar, 10
- br i1 %cond2, label %header, label %body
- 
-body:
- br i1 %cond1, label %header, label %exit
-
-exit:
-; CHECK: ret i32 %phi_indvar
- ret i32 %phi_indvar
-}
-