Revert "[Atomics][LoopIdiom] Recognize unordered atomic memcpy"

This reverts commit r304310.

It caused build failures in polly and mingw
due to undefined reference to
llvm::RTLIB::getMEMCPY_ELEMENT_ATOMIC.

llvm-svn: 304315

1 files changed, 0 insertions, 451 deletions

diff --git a/llvm/test/Transforms/LoopIdiom/unordered-atomic-memcpy.ll b/llvm/test/Transforms/LoopIdiom/unordered-atomic-memcpy.ll
deleted file mode 100644
index cd3aefb5755..00000000000
--- a/llvm/test/Transforms/LoopIdiom/unordered-atomic-memcpy.ll
+++ /dev/null
@@ -1,451 +0,0 @@
-; RUN: opt -basicaa -loop-idiom < %s -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-n8:16:32:64"
-
-;; memcpy.atomic formation (atomic load & store)
-define void @test1(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test1(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 1 %Dest, i8* align 1 %Base, i64 %Size, i32 1)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load atomic i8, i8* %I.0.014 unordered, align 1
-  store atomic i8 %V, i8* %DestI unordered, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation (atomic store, normal load)
-define void @test2(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test2(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 1 %Dest, i8* align 1 %Base, i64 %Size, i32 1)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load i8, i8* %I.0.014, align 1
-  store atomic i8 %V, i8* %DestI unordered, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (atomic store, normal load w/ no align)
-define void @test2b(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test2b(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load i8, i8* %I.0.014
-  store atomic i8 %V, i8* %DestI unordered, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (atomic store, normal load w/ bad align)
-define void @test2c(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test2c(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i32, i32 10000
-  %Dest = alloca i32, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i32, i32* %Base, i64 %indvar
-  %DestI = getelementptr i32, i32* %Dest, i64 %indvar
-  %V = load i32, i32* %I.0.014, align 2
-  store atomic i32 %V, i32* %DestI unordered, align 4
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (atomic store w/ bad align, normal load)
-define void @test2d(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test2d(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i32, i32 10000
-  %Dest = alloca i32, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i32, i32* %Base, i64 %indvar
-  %DestI = getelementptr i32, i32* %Dest, i64 %indvar
-  %V = load i32, i32* %I.0.014, align 4
-  store atomic i32 %V, i32* %DestI unordered, align 2
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-
-;; memcpy.atomic formation (normal store, atomic load)
-define void @test3(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test3(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 1 %Dest, i8* align 1 %Base, i64 %Size, i32 1)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load atomic i8, i8* %I.0.014 unordered, align 1
-  store i8 %V, i8* %DestI, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (normal store w/ no align, atomic load)
-define void @test3b(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test3b(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load atomic i8, i8* %I.0.014 unordered, align 1
-  store i8 %V, i8* %DestI
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (normal store, atomic load w/ bad align)
-define void @test3c(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test3c(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i32, i32 10000
-  %Dest = alloca i32, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i32, i32* %Base, i64 %indvar
-  %DestI = getelementptr i32, i32* %Dest, i64 %indvar
-  %V = load atomic i32, i32* %I.0.014 unordered, align 2
-  store i32 %V, i32* %DestI, align 4
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (normal store w/ bad align, atomic load)
-define void @test3d(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test3d(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i32, i32 10000
-  %Dest = alloca i32, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i32, i32* %Base, i64 %indvar
-  %DestI = getelementptr i32, i32* %Dest, i64 %indvar
-  %V = load atomic i32, i32* %I.0.014 unordered, align 4
-  store i32 %V, i32* %DestI, align 2
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-
-;; memcpy.atomic formation rejection (atomic load, ordered-atomic store)
-define void @test4(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test4(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load atomic i8, i8* %I.0.014 unordered, align 1
-  store atomic i8 %V, i8* %DestI monotonic, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (ordered-atomic load, unordered-atomic store)
-define void @test5(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test5(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i8, i32 10000
-  %Dest = alloca i8, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  %DestI = getelementptr i8, i8* %Dest, i64 %indvar
-  %V = load atomic i8, i8* %I.0.014 monotonic, align 1
-  store atomic i8 %V, i8* %DestI unordered, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation (atomic load & store) -- element size 2
-define void @test6(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test6(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 2 %Dest{{[0-9]*}}, i8* align 2 %Base{{[0-9]*}}, i64 %Size, i32 2)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i16, i32 10000
-  %Dest = alloca i16, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i16, i16* %Base, i64 %indvar
-  %DestI = getelementptr i16, i16* %Dest, i64 %indvar
-  %V = load atomic i16, i16* %I.0.014 unordered, align 2
-  store atomic i16 %V, i16* %DestI unordered, align 2
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation (atomic load & store) -- element size 4
-define void @test7(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test7(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %Dest{{[0-9]*}}, i8* align 4 %Base{{[0-9]*}}, i64 %Size, i32 4)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i32, i32 10000
-  %Dest = alloca i32, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i32, i32* %Base, i64 %indvar
-  %DestI = getelementptr i32, i32* %Dest, i64 %indvar
-  %V = load atomic i32, i32* %I.0.014 unordered, align 4
-  store atomic i32 %V, i32* %DestI unordered, align 4
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation (atomic load & store) -- element size 8
-define void @test8(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test8(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 8 %Dest{{[0-9]*}}, i8* align 8 %Base{{[0-9]*}}, i64 %Size, i32 8)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i64, i32 10000
-  %Dest = alloca i64, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i64, i64* %Base, i64 %indvar
-  %DestI = getelementptr i64, i64* %Dest, i64 %indvar
-  %V = load atomic i64, i64* %I.0.014 unordered, align 8
-  store atomic i64 %V, i64* %DestI unordered, align 8
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation (atomic load & store) -- element size 16
-define void @test9(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test9(
-; CHECK: call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 16 %Dest{{[0-9]*}}, i8* align 16 %Base{{[0-9]*}}, i64 %Size, i32 16)
-; CHECK-NOT: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i128, i32 10000
-  %Dest = alloca i128, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i128, i128* %Base, i64 %indvar
-  %DestI = getelementptr i128, i128* %Dest, i64 %indvar
-  %V = load atomic i128, i128* %I.0.014 unordered, align 16
-  store atomic i128 %V, i128* %DestI unordered, align 16
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-;; memcpy.atomic formation rejection (atomic load & store) -- element size 32
-define void @test10(i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test10(
-; CHECK-NOT: call void @llvm.memcpy.element.atomic
-; CHECK: store
-; CHECK: ret void
-bb.nph:
-  %Base = alloca i256, i32 10000
-  %Dest = alloca i256, i32 10000
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i256, i256* %Base, i64 %indvar
-  %DestI = getelementptr i256, i256* %Dest, i64 %indvar
-  %V = load atomic i256, i256* %I.0.014 unordered, align 32
-  store atomic i256 %V, i256* %DestI unordered, align 32
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-
-
-; Make sure that atomic memset doesn't get recognized by mistake
-define void @test_nomemset(i8* %Base, i64 %Size) nounwind ssp {
-; CHECK-LABEL: @test_nomemset(
-; CHECK-NOT: call void @llvm.memset
-; CHECK: store
-; CHECK: ret void
-bb.nph:                                           ; preds = %entry
-  br label %for.body
-
-for.body:                                         ; preds = %bb.nph, %for.body
-  %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
-  %I.0.014 = getelementptr i8, i8* %Base, i64 %indvar
-  store atomic i8 0, i8* %I.0.014 unordered, align 1
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, %Size
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body, %entry
-  ret void
-}
-
-; Verify that unordered memset_pattern isn't recognized.
-; This is a replica of test11_pattern from basic.ll
-define void @test_nomemset_pattern(i32* nocapture %P) nounwind ssp {
-; CHECK-LABEL: @test_nomemset_pattern(
-; CHECK-NEXT: entry:
-; CHECK-NOT: bitcast
-; CHECK-NOT: memset_pattern
-; CHECK: store atomic
-; CHECK: ret void
-entry:
-  br label %for.body
-
-for.body:                                         ; preds = %entry, %for.body
-  %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ]
-  %arrayidx = getelementptr i32, i32* %P, i64 %indvar
-  store atomic i32 1, i32* %arrayidx unordered, align 4
-  %indvar.next = add i64 %indvar, 1
-  %exitcond = icmp eq i64 %indvar.next, 10000
-  br i1 %exitcond, label %for.end, label %for.body
-
-for.end:                                          ; preds = %for.body
-  ret void
-}