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Diffstat (limited to 'test/Transforms/PGOProfile/loop2.ll')
-rw-r--r-- | test/Transforms/PGOProfile/loop2.ll | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/test/Transforms/PGOProfile/loop2.ll b/test/Transforms/PGOProfile/loop2.ll new file mode 100644 index 000000000000..ec3e16d461bc --- /dev/null +++ b/test/Transforms/PGOProfile/loop2.ll @@ -0,0 +1,70 @@ +; RUN: opt < %s -pgo-instr-gen -S | FileCheck %s --check-prefix=GEN +; RUN: llvm-profdata merge %S/Inputs/loop2.proftext -o %t.profdata +; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -S | FileCheck %s --check-prefix=USE +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +; GEN: @__profn_test_nested_for = private constant [15 x i8] c"test_nested_for" + +define i32 @test_nested_for(i32 %r, i32 %s) { +entry: +; GEN: entry: +; GEN-NOT: call void @llvm.instrprof.increment + br label %for.cond.outer + +for.cond.outer: +; GEN: for.cond.outer: +; GEN-NOT: call void @llvm.instrprof.increment + %i.0 = phi i32 [ 0, %entry ], [ %inc.2, %for.inc.outer ] + %sum.0 = phi i32 [ 1, %entry ], [ %sum.1, %for.inc.outer ] + %cmp = icmp slt i32 %i.0, %r + br i1 %cmp, label %for.body.outer, label %for.end.outer +; USE: br i1 %cmp, label %for.body.outer, label %for.end.outer +; USE-SAME: !prof ![[BW_FOR_COND_OUTER:[0-9]+]] + +for.body.outer: +; GEN: for.body.outer: +; GEN-NOT: call void @llvm.instrprof.increment + br label %for.cond.inner + +for.cond.inner: +; GEN: for.cond.inner: +; GEN-NOT: call void @llvm.instrprof.increment + %j.0 = phi i32 [ 0, %for.body.outer ], [ %inc.1, %for.inc.inner ] + %sum.1 = phi i32 [ %sum.0, %for.body.outer ], [ %inc, %for.inc.inner ] + %cmp2 = icmp slt i32 %j.0, %s + br i1 %cmp2, label %for.body.inner, label %for.end.inner +; USE: br i1 %cmp2, label %for.body.inner, label %for.end.inner +; USE-SAME: !prof ![[BW_FOR_COND_INNER:[0-9]+]] + +for.body.inner: +; GEN: for.body.inner: +; GEN-NOT: call void @llvm.instrprof.increment + %inc = add nsw i32 %sum.1, 1 + br label %for.inc.inner + +for.inc.inner: +; GEN: for.inc.inner: +; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__profn_test_nested_for, i32 0, i32 0), i64 53929068288, i32 3, i32 0) + %inc.1 = add nsw i32 %j.0, 1 + br label %for.cond.inner + +for.end.inner: +; GEN: for.end.inner: + br label %for.inc.outer + +for.inc.outer: +; GEN: for.inc.outer: +; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__profn_test_nested_for, i32 0, i32 0), i64 53929068288, i32 3, i32 1) + %inc.2 = add nsw i32 %i.0, 1 + br label %for.cond.outer + +for.end.outer: +; GEN: for.end.outer: +; GEN: call void @llvm.instrprof.increment(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @__profn_test_nested_for, i32 0, i32 0), i64 53929068288, i32 3, i32 2) + ret i32 %sum.0 +} + +; USE-DAG: ![[BW_FOR_COND_OUTER]] = !{!"branch_weights", i32 10, i32 6} +; USE-DAG: ![[BW_FOR_COND_INNER]] = !{!"branch_weights", i32 33, i32 10} + |