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, 280 deletions

diff --git a/llvm/test/Transforms/CodeGenPrepare/X86/sink-addrmode.ll b/llvm/test/Transforms/CodeGenPrepare/X86/sink-addrmode.ll
deleted file mode 100644
index 4d28e06f252..00000000000
--- a/llvm/test/Transforms/CodeGenPrepare/X86/sink-addrmode.ll
+++ /dev/null
@@ -1,280 +0,0 @@
-; RUN: opt -S -codegenprepare < %s | FileCheck %s
-
-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"
-target triple = "x86_64-unknown-linux-gnu"
-
-@x = external global [1 x [2 x <4 x float>]]
-
-; Can we sink single addressing mode computation to use?
-define void @test1(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test1
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-entry:
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-  %v = load i32, i32* %casted, align 4
-  br label %fallthrough
-
-fallthrough:
-  ret void
-}
-
-declare void @foo(i32)
-
-; Make sure sinking two copies of addressing mode into different blocks works
-define void @test2(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test2
-entry:
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-; CHECK-LABEL: if.then:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %v1 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v1)
-  %cmp = icmp eq i32 %v1, 0
-  br i1 %cmp, label %next, label %fallthrough
-
-next:
-; CHECK-LABEL: next:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %v2 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v2)
-  br label %fallthrough
-
-fallthrough:
-  ret void
-}
-
-; If we have two loads in the same block, only need one copy of addressing mode
-; - instruction selection will duplicate if needed
-define void @test3(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test3
-entry:
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-; CHECK-LABEL: if.then:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %v1 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v1)
-; CHECK-NOT: getelementptr inbounds i8, {{.+}} 40
-  %v2 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v2)
-  br label %fallthrough
-
-fallthrough:
-  ret void
-}
-
-; Can we still sink addressing mode if there's a cold use of the
-; address itself?  
-define void @test4(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test4
-entry:
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-; CHECK-LABEL: if.then:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %v1 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v1)
-  %cmp = icmp eq i32 %v1, 0
-  br i1 %cmp, label %rare.1, label %fallthrough
-
-fallthrough:
-  ret void
-
-rare.1:
-; CHECK-LABEL: rare.1:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  call void @slowpath(i32 %v1, i32* %casted) cold
-  br label %fallthrough
-}
-
-; Negative test - don't want to duplicate addressing into hot path
-define void @test5(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test5
-entry:
-; CHECK: %addr = getelementptr inbounds
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-; CHECK-LABEL: if.then:
-; CHECK-NOT: getelementptr inbounds i8, {{.+}} 40
-  %v1 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v1)
-  %cmp = icmp eq i32 %v1, 0
-  br i1 %cmp, label %rare.1, label %fallthrough
-
-fallthrough:
-  ret void
-
-rare.1:
-  call void @slowpath(i32 %v1, i32* %casted) ;; NOT COLD
-  br label %fallthrough
-}
-
-; Negative test - opt for size
-define void @test6(i1 %cond, i64* %base) minsize {
-; CHECK-LABEL: @test6
-entry:
-; CHECK: %addr = getelementptr
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-; CHECK-LABEL: if.then:
-; CHECK-NOT: getelementptr inbounds i8, {{.+}} 40
-  %v1 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v1)
-  %cmp = icmp eq i32 %v1, 0
-  br i1 %cmp, label %rare.1, label %fallthrough
-
-fallthrough:
-  ret void
-
-rare.1:
-  call void @slowpath(i32 %v1, i32* %casted) cold
-  br label %fallthrough
-}
-
-
-; Make sure sinking two copies of addressing mode into different blocks works
-; when there are cold paths for each.
-define void @test7(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test7
-entry:
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br i1 %cond, label %if.then, label %fallthrough
-
-if.then:
-; CHECK-LABEL: if.then:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %v1 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v1)
-  %cmp = icmp eq i32 %v1, 0
-  br i1 %cmp, label %rare.1, label %next
-
-next:
-; CHECK-LABEL: next:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %v2 = load i32, i32* %casted, align 4
-  call void @foo(i32 %v2)
-  %cmp2 = icmp eq i32 %v2, 0
-  br i1 %cmp2, label %rare.1, label %fallthrough
-
-fallthrough:
-  ret void
-
-rare.1:
-; CHECK-LABEL: rare.1:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  call void @slowpath(i32 %v1, i32* %casted) cold
-  br label %next
-
-rare.2:
-; CHECK-LABEL: rare.2:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  call void @slowpath(i32 %v2, i32* %casted) cold
-  br label %fallthrough
-}
-
-declare void @slowpath(i32, i32*)
-
-; Make sure we don't end up in an infinite loop after we fail to sink.
-; CHECK-LABEL: define void @test8
-; CHECK: %ptr = getelementptr i8, i8* %aFOO_load_ptr2int_2void, i32 undef
-define void @test8() {
-allocas:
-  %aFOO_load = load float*, float** undef
-  %aFOO_load_ptr2int = ptrtoint float* %aFOO_load to i64
-  %aFOO_load_ptr2int_broadcast_init = insertelement <4 x i64> undef, i64 %aFOO_load_ptr2int, i32 0
-  %aFOO_load_ptr2int_2void = inttoptr i64 %aFOO_load_ptr2int to i8*
-  %ptr = getelementptr i8, i8* %aFOO_load_ptr2int_2void, i32 undef
-  br label %load.i145
-
-load.i145:
-  %ptr.i143 = bitcast i8* %ptr to <4 x float>*
-  %valall.i144 = load <4 x float>, <4 x float>* %ptr.i143, align 4
-  %x_offset = getelementptr [1 x [2 x <4 x float>]], [1 x [2 x <4 x float>]]* @x, i32 0, i64 0
-  br label %pl_loop.i.i122
-
-pl_loop.i.i122:
-  br label %pl_loop.i.i122
-}
-
-; Make sure we can sink address computation even
-; if there is a cycle in phi nodes.
-define void @test9(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test9
-entry:
-  %addr = getelementptr inbounds i64, i64* %base, i64 5
-  %casted = bitcast i64* %addr to i32*
-  br label %header
-
-header:
-  %iv = phi i32 [0, %entry], [%iv.inc, %backedge]
-  %casted.loop = phi i32* [%casted, %entry], [%casted.merged, %backedge]
-  br i1 %cond, label %if.then, label %backedge
-
-if.then:
-  call void @foo(i32 %iv)
-  %addr.1 = getelementptr inbounds i64, i64* %base, i64 5
-  %casted.1 = bitcast i64* %addr.1 to i32*
-  br label %backedge
-
-backedge:
-; CHECK-LABEL: backedge:
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-  %casted.merged = phi i32* [%casted.loop, %header], [%casted.1, %if.then]
-  %v = load i32, i32* %casted.merged, align 4
-  call void @foo(i32 %v)
-  %iv.inc = add i32 %iv, 1
-  %cmp = icmp slt i32 %iv.inc, 1000
-  br i1 %cmp, label %header, label %exit
-
-exit:
-  ret void
-}
-
-; Make sure we can eliminate a select when both arguments perform equivalent
-; address computation.
-define void @test10(i1 %cond, i64* %base) {
-; CHECK-LABEL: @test10
-; CHECK: getelementptr inbounds i8, {{.+}} 40
-; CHECK-NOT: select
-entry:
-  %gep1 = getelementptr inbounds i64, i64* %base, i64 5
-  %gep1.casted = bitcast i64* %gep1 to i32*
-  %base.casted = bitcast i64* %base to i32*
-  %gep2 = getelementptr inbounds i32, i32* %base.casted, i64 10
-  %casted.merged = select i1 %cond, i32* %gep1.casted, i32* %gep2
-  %v = load i32, i32* %casted.merged, align 4
-  call void @foo(i32 %v)
-  ret void
-}
-
-; Found by fuzzer, getSExtValue of > 64 bit constant
-define void @i96_mul(i1* %base, i96 %offset) {
-BB:
-  ;; RHS = 0x7FFFFFFFFFFFFFFFFFFFFFFF
-  %B84 = mul i96 %offset, 39614081257132168796771975167
-  %G23 = getelementptr i1, i1* %base, i96 %B84
-  store i1 false, i1* %G23
-  ret void
-}