diff options
Diffstat (limited to 'llvm/test/Transforms/PGOProfile/select1.ll')
| -rw-r--r-- | llvm/test/Transforms/PGOProfile/select1.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/llvm/test/Transforms/PGOProfile/select1.ll b/llvm/test/Transforms/PGOProfile/select1.ll new file mode 100644 index 00000000000..34e30a23ab0 --- /dev/null +++ b/llvm/test/Transforms/PGOProfile/select1.ll @@ -0,0 +1,34 @@ +; RUN: opt < %s -pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN +; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=true -S | FileCheck %s --check-prefix=GEN +; RUN: opt < %s -pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT +; RUN: opt < %s -passes=pgo-instr-gen -pgo-instr-select=false -S | FileCheck %s --check-prefix=NOSELECT +; RUN: llvm-profdata merge %S/Inputs/select1.proftext -o %t.profdata +; RUN: opt < %s -pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -S | FileCheck %s --check-prefix=USE +; RUN: opt < %s -passes=pgo-instr-use -pgo-test-profile-file=%t.profdata -pgo-instr-select=true -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" + +define i32 @test_br_2(i32 %i) { +entry: + %cmp = icmp sgt i32 %i, 0 + br i1 %cmp, label %if.then, label %if.else + +if.then: + %add = add nsw i32 %i, 2 +;GEN: %[[STEP:[0-9]+]] = zext i1 %cmp to i64 +;GEN: call void @llvm.instrprof.increment.step({{.*}} i32 3, i32 2, i64 %[[STEP]]) +;NOSELECT-NOT: call void @llvm.instrprof.increment.step + %s = select i1 %cmp, i32 %add, i32 0 +;USE: select i1 %cmp{{.*}}, !prof ![[BW_ENTRY:[0-9]+]] +;USE: ![[BW_ENTRY]] = !{!"branch_weights", i32 1, i32 3} + + br label %if.end + +if.else: + %sub = sub nsw i32 %i, 2 + br label %if.end + +if.end: + %retv = phi i32 [ %add, %if.then ], [ %sub, %if.else ] + ret i32 %retv +} |
