diff options
Diffstat (limited to 'llvm/test/Transforms/Inline/inline-hot-callee.ll')
| -rw-r--r-- | llvm/test/Transforms/Inline/inline-hot-callee.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Inline/inline-hot-callee.ll b/llvm/test/Transforms/Inline/inline-hot-callee.ll new file mode 100644 index 00000000000..93ea9d43c78 --- /dev/null +++ b/llvm/test/Transforms/Inline/inline-hot-callee.ll @@ -0,0 +1,39 @@ +; RUN: opt < %s -inline -inline-threshold=0 -inlinehint-threshold=100 -S | FileCheck %s + +; This tests that a hot callee gets the (higher) inlinehint-threshold even without +; inline hints and gets inlined because the cost is less than inlinehint-threshold. +; A cold callee with identical body does not get inlined because cost exceeds the +; inline-threshold + +define i32 @callee1(i32 %x) !prof !1 { + %x1 = add i32 %x, 1 + %x2 = add i32 %x1, 1 + %x3 = add i32 %x2, 1 + + ret i32 %x3 +} + +define i32 @callee2(i32 %x) !prof !2 { +; CHECK-LABEL: @callee2( + %x1 = add i32 %x, 1 + %x2 = add i32 %x1, 1 + %x3 = add i32 %x2, 1 + + ret i32 %x3 +} + +define i32 @caller2(i32 %y1) !prof !2 { +; CHECK-LABEL: @caller2( +; CHECK: call i32 @callee2 +; CHECK-NOT: call i32 @callee1 +; CHECK: ret i32 %x3.i + %y2 = call i32 @callee2(i32 %y1) + %y3 = call i32 @callee1(i32 %y2) + ret i32 %y3 +} + +!llvm.module.flags = !{!0} +!0 = !{i32 1, !"MaxFunctionCount", i32 10} +!1 = !{!"function_entry_count", i64 10} +!2 = !{!"function_entry_count", i64 1} + |
