diff --git a/llvm/test/Transforms/InstCombine/update-bpi.ll b/llvm/test/Transforms/InstCombine/update-bpi.ll new file mode 100644 index 0000000000000..190a686c8f078 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/update-bpi.ll @@ -0,0 +1,36 @@ +; RUN: opt < %s -passes="print,instcombine,print" -S 2>&1 | FileCheck %s + +; CHECK: Printing analysis 'Branch Probability Analysis' for function 'invert_cond': +; CHECK-NEXT: ---- Branch Probabilities ---- +; CHECK-NEXT: edge %entry -> %bb1 probability is 0x06186186 / 0x80000000 = 4.76% +; CHECK-NEXT: edge %entry -> %bb2 probability is 0x79e79e7a / 0x80000000 = 95.24% [HOT edge] +; CHECK-NEXT: Printing analysis 'Branch Probability Analysis' for function 'invert_cond': +; CHECK-NEXT: ---- Branch Probabilities ---- +; CHECK-NEXT: edge %entry -> %bb2 probability is 0x06186186 / 0x80000000 = 4.76% +; CHECK-NEXT: edge %entry -> %bb1 probability is 0x79e79e7a / 0x80000000 = 95.24% [HOT edge] + +define i32 @invert_cond(ptr %p) { +; CHECK-LABEL: define i32 @invert_cond( +; CHECK-SAME: ptr [[P:%.*]]) { +; CHECK-NEXT: entry: +; CHECK-NEXT: [[COND_NOT:%.*]] = icmp eq ptr [[P]], null +; CHECK-NEXT: br i1 [[COND_NOT]], label [[BB2:%.*]], label [[BB1:%.*]], !prof [[PROF0:![0-9]+]] +; CHECK: bb1: +; CHECK-NEXT: ret i32 0 +; CHECK: bb2: +; CHECK-NEXT: ret i32 1 +; +entry: + %cond = icmp ne ptr %p, null + br i1 %cond, label %bb1, label %bb2, !prof !1 + +bb1: + ret i32 0; + +bb2: + ret i32 1; +} + +!1 = !{!"branch_weights", i32 1, i32 20} +; CHECK: [[PROF0]] = !{!"branch_weights", i32 20, i32 1} +