| ; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s |
| |
| define void @test(i1 %cnd) !prof !{!"function_entry_count", i64 1024} { |
| ; CHECK-LABEL: @test |
| ; Using the assembly comments to indicate block order.. |
| ; CHECK: # %loop |
| ; CHECK: # %backedge |
| ; CHECK: # %exit |
| ; CHECK: # %rare |
| ; CHECK: # %rare.1 |
| |
| br i1 undef, label %rare.1, label %preheader, !prof !{!"branch_weights", i32 0, i32 1000} |
| rare.1: |
| call void @foo() |
| br label %preheader |
| |
| preheader: |
| br label %loop |
| |
| loop: |
| %iv = phi i32 [0, %preheader], [%iv.next, %backedge] |
| call void @foo() |
| br i1 %cnd, label %backedge, label %rare, !prof !{!"branch_weights", i32 1000000, i32 1} |
| rare: |
| call void @foo() |
| br label %backedge |
| backedge: |
| call void @foo() |
| %iv.next = add i32 %iv, 1 |
| %cmp = icmp eq i32 %iv.next, 200 |
| br i1 %cmp, label %loop, label %exit, !prof !{!"branch_weights", i32 1000, i32 1} |
| |
| exit: |
| ret void |
| |
| } |
| |
| |
| declare void @foo() |
