diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/machine-sink.ll')
-rw-r--r-- | llvm/test/CodeGen/X86/machine-sink.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/machine-sink.ll b/llvm/test/CodeGen/X86/machine-sink.ll index e69de29bb2d..8fc89843e6e 100644 --- a/llvm/test/CodeGen/X86/machine-sink.ll +++ b/llvm/test/CodeGen/X86/machine-sink.ll @@ -0,0 +1,21 @@ +; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s + +; Checks if movl $1 is sinked to critical edge. +; CHECK-NOT: movl $1 +; CHECK: jbe +; CHECK: movl $1 +define i32 @test(i32 %n, i32 %k) nounwind { +entry: + %cmp = icmp ugt i32 %k, %n + br i1 %cmp, label %ifthen, label %ifend, !prof !1 + +ifthen: + %y = add i32 %k, 2 + br label %ifend + +ifend: + %ret = phi i32 [ 1, %entry ] , [ %y, %ifthen] + ret i32 %ret +} + +!1 = !{!"branch_weights", i32 100, i32 1} |