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, 112 deletions

diff --git a/llvm/test/Transforms/LoopVectorize/X86/reduction-fastmath.ll b/llvm/test/Transforms/LoopVectorize/X86/reduction-fastmath.ll
deleted file mode 100644
index 1146e31ec25..00000000000
--- a/llvm/test/Transforms/LoopVectorize/X86/reduction-fastmath.ll
+++ /dev/null
@@ -1,112 +0,0 @@
-; RUN: opt -S -loop-vectorize < %s | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-define float @reduction_sum_float_ieee(i32 %n, float* %array) {
-; CHECK-LABEL: define float @reduction_sum_float_ieee(
-entry:
-  %entry.cond = icmp ne i32 0, 4096
-  br i1 %entry.cond, label %loop, label %loop.exit
-
-loop:
-  %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ]
-  %sum = phi float [ 0.000000e+00, %entry ], [ %sum.inc, %loop ]
-  %address = getelementptr float, float* %array, i32 %idx
-  %value = load float, float* %address
-  %sum.inc = fadd float %sum, %value
-  %idx.inc = add i32 %idx, 1
-  %be.cond = icmp ne i32 %idx.inc, 4096
-  br i1 %be.cond, label %loop, label %loop.exit
-
-loop.exit:
-  %sum.lcssa = phi float [ %sum.inc, %loop ], [ 0.000000e+00, %entry ]
-; CHECK-NOT: %wide.load = load <4 x float>, <4 x float>*
-; CHECK: ret float %sum.lcssa
-  ret float %sum.lcssa
-}
-
-define float @reduction_sum_float_fastmath(i32 %n, float* %array) {
-; CHECK-LABEL: define float @reduction_sum_float_fastmath(
-; CHECK: fadd fast <4 x float>
-; CHECK: fadd fast <4 x float>
-; CHECK: fadd fast <4 x float>
-; CHECK: fadd fast <4 x float>
-; CHECK: fadd fast <4 x float>
-entry:
-  %entry.cond = icmp ne i32 0, 4096
-  br i1 %entry.cond, label %loop, label %loop.exit
-
-loop:
-  %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ]
-  %sum = phi float [ 0.000000e+00, %entry ], [ %sum.inc, %loop ]
-  %address = getelementptr float, float* %array, i32 %idx
-  %value = load float, float* %address
-  %sum.inc = fadd fast float %sum, %value
-  %idx.inc = add i32 %idx, 1
-  %be.cond = icmp ne i32 %idx.inc, 4096
-  br i1 %be.cond, label %loop, label %loop.exit
-
-loop.exit:
-  %sum.lcssa = phi float [ %sum.inc, %loop ], [ 0.000000e+00, %entry ]
-; CHECK: ret float %sum.lcssa
-  ret float %sum.lcssa
-}
-
-define float @reduction_sum_float_only_reassoc(i32 %n, float* %array) {
-; CHECK-LABEL: define float @reduction_sum_float_only_reassoc(
-; CHECK-NOT: fadd fast
-; CHECK: fadd reassoc <4 x float>
-; CHECK: fadd reassoc <4 x float>
-; CHECK: fadd reassoc <4 x float>
-; CHECK: fadd reassoc <4 x float>
-; CHECK: fadd reassoc <4 x float>
-
-entry:
-  %entry.cond = icmp ne i32 0, 4096
-  br i1 %entry.cond, label %loop, label %loop.exit
-
-loop:
-  %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ]
-  %sum = phi float [ 0.000000e+00, %entry ], [ %sum.inc, %loop ]
-  %address = getelementptr float, float* %array, i32 %idx
-  %value = load float, float* %address
-  %sum.inc = fadd reassoc float %sum, %value
-  %idx.inc = add i32 %idx, 1
-  %be.cond = icmp ne i32 %idx.inc, 4096
-  br i1 %be.cond, label %loop, label %loop.exit
-
-loop.exit:
-  %sum.lcssa = phi float [ %sum.inc, %loop ], [ 0.000000e+00, %entry ]
-; CHECK: ret float %sum.lcssa
-  ret float %sum.lcssa
-}
-
-define float @reduction_sum_float_only_reassoc_and_contract(i32 %n, float* %array) {
-; CHECK-LABEL: define float @reduction_sum_float_only_reassoc_and_contract(
-; CHECK-NOT: fadd fast
-; CHECK: fadd reassoc contract <4 x float>
-; CHECK: fadd reassoc contract <4 x float>
-; CHECK: fadd reassoc contract <4 x float>
-; CHECK: fadd reassoc contract <4 x float>
-; CHECK: fadd reassoc contract <4 x float>
-
-entry:
-  %entry.cond = icmp ne i32 0, 4096
-  br i1 %entry.cond, label %loop, label %loop.exit
-
-loop:
-  %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ]
-  %sum = phi float [ 0.000000e+00, %entry ], [ %sum.inc, %loop ]
-  %address = getelementptr float, float* %array, i32 %idx
-  %value = load float, float* %address
-  %sum.inc = fadd reassoc contract float %sum, %value
-  %idx.inc = add i32 %idx, 1
-  %be.cond = icmp ne i32 %idx.inc, 4096
-  br i1 %be.cond, label %loop, label %loop.exit
-
-loop.exit:
-  %sum.lcssa = phi float [ %sum.inc, %loop ], [ 0.000000e+00, %entry ]
-; CHECK: ret float %sum.lcssa
-  ret float %sum.lcssa
-}