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llvm-project/llvm/test/Transforms/PGOProfile/criticaledge.ll

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[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
[PM] port IR based PGO prof-gen pass to new pass manager llvm-svn: 268710
2016-05-06 13:49:19 +08:00
; RUN: opt < %s -passes=pgo-instr-gen -S | FileCheck %s --check-prefix=GEN
[PGO] Use %t as the temporary profdata filename in the test cases. Using %t rather %T/<specific_name> as the temporary profdata filename. llvm-svn: 255271
2015-12-11 02:24:44 +08:00
; RUN: llvm-profdata merge %S/Inputs/criticaledge.proftext -o %t.profdata
; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
[PM]: port IR based profUse pass to new pass manager llvm-svn: 269129
2016-05-11 05:59:52 +08:00
; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
[PGO] Differentiate Clang instrumentation and IR level instrumentation profiles This patch uses one bit in profile version to differentiate Clang instrumentation and IR level instrumentation profiles. PGOInstrumenation generates a COMDAT variable __llvm_profile_raw_version so that the compiler runtime can set the right profile kind. For Maco-O platform, we generate the variable as linkonce_odr linkage as COMDAT is not supported. PGOInstrumenation now checks this bit to make sure it's an IR level instrumentation profile. The patch was submitted as r260164 but reverted due to a Darwin test breakage. Original Differential Revision: http://reviews.llvm.org/D15540 Differential Revision: http://reviews.llvm.org/D17020 llvm-svn: 260385
2016-02-11 01:18:30 +08:00
; GEN: $__llvm_profile_raw_version = comdat any
[test/PGOProfile] Make tests independent of the raw profile version (NFC) Differential Revision: http://reviews.llvm.org/D19290 llvm-svn: 266928
2016-04-21 06:24:01 +08:00
; GEN: @__llvm_profile_raw_version = constant i64 {{[0-9]+}}, comdat
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: @__profn_test_criticalEdge = private constant [17 x i8] c"test_criticalEdge"
; GEN: @__profn__stdin__bar = private constant [11 x i8] c"<stdin>:bar"
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
define i32 @test_criticalEdge(i32 %i, i32 %j) {
entry:
; CHECK: entry:
; GEN-NOT: call void @llvm.instrprof.increment
switch i32 %i, label %sw.default [
i32 1, label %sw.bb
i32 2, label %sw.bb1
i32 3, label %sw.bb2
i32 4, label %sw.bb2
; CHECK: i32 3, label %entry.sw.bb2_crit_edge
; CHECK: i32 4, label %entry.sw.bb2_crit_edge1
i32 5, label %sw.bb2
]
; USE: ]
; USE-SAME: !prof ![[BW_SWITCH:[0-9]+]]
; CHECK: entry.sw.bb2_crit_edge1:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 1)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
; CHECK: br label %sw.bb2
; CHECK: entry.sw.bb2_crit_edge:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 0)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
; CHECK: br label %sw.bb2
sw.bb:
; GEN: sw.bb:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 5)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
%call = call i32 @bar(i32 2)
br label %sw.epilog
sw.bb1:
; GEN: sw.bb1:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 4)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
%call2 = call i32 @bar(i32 1024)
br label %sw.epilog
sw.bb2:
; GEN: sw.bb2:
; GEN-NOT: call void @llvm.instrprof.increment
%cmp = icmp eq i32 %j, 2
br i1 %cmp, label %if.then, label %if.end
; USE: br i1 %cmp, label %if.then, label %if.end
; USE-SAME: !prof ![[BW_SW_BB2:[0-9]+]]
if.then:
; GEN: if.then:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 2)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
%call4 = call i32 @bar(i32 4)
br label %return
if.end:
; GEN: if.end:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 3)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
%call5 = call i32 @bar(i32 8)
br label %sw.epilog
sw.default:
; GEN: sw.default:
; GEN-NOT: call void @llvm.instrprof.increment
%call6 = call i32 @bar(i32 32)
%cmp7 = icmp sgt i32 %j, 10
br i1 %cmp7, label %if.then8, label %if.end9
; USE: br i1 %cmp7, label %if.then8, label %if.end9
; USE-SAME: !prof ![[BW_SW_DEFAULT:[0-9]+]]
if.then8:
; GEN: if.then8:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 7)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
%add = add nsw i32 %call6, 10
br label %if.end9
if.end9:
; GEN: if.end9:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @__profn_test_criticalEdge, i32 0, i32 0), i64 82323253069, i32 8, i32 6)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
%res.0 = phi i32 [ %add, %if.then8 ], [ %call6, %sw.default ]
br label %sw.epilog
sw.epilog:
; GEN: sw.epilog:
; GEN-NOT: call void @llvm.instrprof.increment
%res.1 = phi i32 [ %res.0, %if.end9 ], [ %call5, %if.end ], [ %call2, %sw.bb1 ], [ %call, %sw.bb ]
br label %return
return:
; GEN: return:
; GEN-NOT: call void @llvm.instrprof.increment
%retval = phi i32 [ %res.1, %sw.epilog ], [ %call4, %if.then ]
ret i32 %retval
}
define internal i32 @bar(i32 %i) {
entry:
[PGO] make profile prefix even shorter and more readable llvm-svn: 255586
2015-12-15 08:32:56 +08:00
; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @__profn__stdin__bar, i32 0, i32 0), i64 12884901887, i32 1, i32 0)
[PGO] Resubmit "MST based PGO instrumentation infrastructure" (r254021) This new patch fixes a few bugs that exposed in last submit. It also improves the test cases. --Original Commit Message-- This patch implements a minimum spanning tree (MST) based instrumentation for PGO. The use of MST guarantees minimum number of CFG edges getting instrumented. An addition optimization is to instrument the less executed edges to further reduce the instrumentation overhead. The patch contains both the instrumentation and the use of the profile to set the branch weights. Differential Revision: http://reviews.llvm.org/D12781 llvm-svn: 255132
2015-12-10 02:08:16 +08:00
ret i32 %i
}
; USE: ![[BW_SWITCH]] = !{!"branch_weights", i32 2, i32 1, i32 0, i32 2, i32 1, i32 1}
; USE: ![[BW_SW_BB2]] = !{!"branch_weights", i32 2, i32 2}
; USE: ![[BW_SW_DEFAULT]] = !{!"branch_weights", i32 1, i32 1}