Remove the very substantial, largely unmaintained legacy PGO

infrastructure.

This was essentially work toward PGO based on a design that had several
flaws, partially dating from a time when LLVM had a different
architecture, and with an effort to modernize it abandoned without being
completed. Since then, it has bitrotted for several years further. The
result is nearly unusable, and isn't helping any of the modern PGO
efforts. Instead, it is getting in the way, adding confusion about PGO
in LLVM and distracting everyone with maintenance on essentially dead
code. Removing it paves the way for modern efforts around PGO.

Among other effects, this removes the last of the runtime libraries from
LLVM. Those are being developed in the separate 'compiler-rt' project
now, with somewhat different licensing specifically more approriate for
runtimes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191835 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 139 deletions

diff --git a/test/Analysis/Profiling/edge-profiling.ll b/test/Analysis/Profiling/edge-profiling.ll
deleted file mode 100644
index cbaf476..0000000
--- a/test/Analysis/Profiling/edge-profiling.ll
+++ /dev/null
@@ -1,139 +0,0 @@
-; Test the edge profiling instrumentation.
-; RUN: opt < %s -insert-edge-profiling -S | FileCheck %s
-
-; ModuleID = '<stdin>'
-
-@.str = private constant [12 x i8] c"hello world\00", align 1 ; <[12 x i8]*> [#uses=1]
-@.str1 = private constant [6 x i8] c"franz\00", align 1 ; <[6 x i8]*> [#uses=1]
-@.str2 = private constant [9 x i8] c"argc > 2\00", align 1 ; <[9 x i8]*> [#uses=1]
-@.str3 = private constant [9 x i8] c"argc = 1\00", align 1 ; <[9 x i8]*> [#uses=1]
-@.str4 = private constant [6 x i8] c"fritz\00", align 1 ; <[6 x i8]*> [#uses=1]
-@.str5 = private constant [10 x i8] c"argc <= 1\00", align 1 ; <[10 x i8]*> [#uses=1]
-; CHECK:@EdgeProfCounters
-; CHECK:[19 x i32] 
-; CHECK:zeroinitializer
-
-define void @oneblock() nounwind {
-entry:
-; CHECK:entry:
-; CHECK:%OldFuncCounter
-; CHECK:load 
-; CHECK:getelementptr
-; CHECK:@EdgeProfCounters
-; CHECK:i32 0
-; CHECK:i32 0
-; CHECK:%NewFuncCounter
-; CHECK:add
-; CHECK:%OldFuncCounter
-; CHECK:store 
-; CHECK:%NewFuncCounter
-; CHECK:getelementptr
-; CHECK:@EdgeProfCounters
-  %0 = call i32 @puts(i8* getelementptr inbounds ([12 x i8]* @.str, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
-  ret void
-}
-
-declare i32 @puts(i8*)
-
-define i32 @main(i32 %argc, i8** %argv) nounwind {
-entry:
-; CHECK:entry:
-  %argc_addr = alloca i32                         ; <i32*> [#uses=4]
-  %argv_addr = alloca i8**                        ; <i8***> [#uses=1]
-  %retval = alloca i32                            ; <i32*> [#uses=2]
-  %j = alloca i32                                 ; <i32*> [#uses=4]
-  %i = alloca i32                                 ; <i32*> [#uses=4]
-  %0 = alloca i32                                 ; <i32*> [#uses=2]
-; CHECK:call 
-; CHECK:@llvm_start_edge_profiling
-; CHECK:@EdgeProfCounters
-  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
-  store i32 %argc, i32* %argc_addr
-  store i8** %argv, i8*** %argv_addr
-  store i32 0, i32* %i, align 4
-  br label %bb10
-
-bb:                                               ; preds = %bb10
-; CHECK:bb:
-  %1 = load i32* %argc_addr, align 4              ; <i32> [#uses=1]
-  %2 = icmp sgt i32 %1, 1                         ; <i1> [#uses=1]
-  br i1 %2, label %bb1, label %bb8
-
-bb1:                                              ; preds = %bb
-; CHECK:bb1:
-  store i32 0, i32* %j, align 4
-  br label %bb6
-
-bb2:                                              ; preds = %bb6
-; CHECK:bb2:
-  %3 = call i32 @puts(i8* getelementptr inbounds ([6 x i8]* @.str1, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
-  %4 = load i32* %argc_addr, align 4              ; <i32> [#uses=1]
-  %5 = icmp sgt i32 %4, 2                         ; <i1> [#uses=1]
-  br i1 %5, label %bb3, label %bb4
-
-bb3:                                              ; preds = %bb2
-; CHECK:bb3:
-  %6 = call i32 @puts(i8* getelementptr inbounds ([9 x i8]* @.str2, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
-  br label %bb5
-
-bb4:                                              ; preds = %bb2
-; CHECK:bb4:
-  %7 = call i32 @puts(i8* getelementptr inbounds ([9 x i8]* @.str3, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
-  br label %bb11
-
-bb5:                                              ; preds = %bb3
-; CHECK:bb5:
-  %8 = call i32 @puts(i8* getelementptr inbounds ([6 x i8]* @.str4, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
-  %9 = load i32* %j, align 4                      ; <i32> [#uses=1]
-  %10 = add nsw i32 %9, 1                         ; <i32> [#uses=1]
-  store i32 %10, i32* %j, align 4
-  br label %bb6
-
-bb6:                                              ; preds = %bb5, %bb1
-; CHECK:bb6:
-  %11 = load i32* %j, align 4                     ; <i32> [#uses=1]
-  %12 = load i32* %argc_addr, align 4             ; <i32> [#uses=1]
-  %13 = icmp slt i32 %11, %12                     ; <i1> [#uses=1]
-  br i1 %13, label %bb2, label %bb7
-
-bb7:                                              ; preds = %bb6
-; CHECK:bb7:
-  br label %bb9
-
-bb8:                                              ; preds = %bb
-; CHECK:bb8:
-  %14 = call i32 @puts(i8* getelementptr inbounds ([10 x i8]* @.str5, i64 0, i64 0)) nounwind ; <i32> [#uses=0]
-  br label %bb9
-
-bb9:                                              ; preds = %bb8, %bb7
-; CHECK:bb9:
-  %15 = load i32* %i, align 4                     ; <i32> [#uses=1]
-  %16 = add nsw i32 %15, 1                        ; <i32> [#uses=1]
-  store i32 %16, i32* %i, align 4
-  br label %bb10
-
-bb10:                                             ; preds = %bb9, %entry
-; CHECK:bb10:
-  %17 = load i32* %i, align 4                     ; <i32> [#uses=1]
-  %18 = icmp ne i32 %17, 3                        ; <i1> [#uses=1]
-  br i1 %18, label %bb, label %bb11
-; CHECK:br
-; CHECK:label %bb10.bb11_crit_edge
-
-; CHECK:bb10.bb11_crit_edge:
-; CHECK:br
-; CHECK:label %bb11
-
-bb11:                                             ; preds = %bb10, %bb4
-; CHECK:bb11:
-  call void @oneblock() nounwind
-  store i32 0, i32* %0, align 4
-  %19 = load i32* %0, align 4                     ; <i32> [#uses=1]
-  store i32 %19, i32* %retval, align 4
-  br label %return
-
-return:                                           ; preds = %bb11
-; CHECK:return:
-  %retval12 = load i32* %retval                   ; <i32> [#uses=1]
-  ret i32 %retval12
-}