1 files changed, 83 insertions, 0 deletions
diff --git a/test/Transforms/Inline/alloca-bonus.ll b/test/Transforms/Inline/alloca-bonus.ll
new file mode 100644
index 0000000..91ab40a
--- /dev/null
+++ b/test/Transforms/Inline/alloca-bonus.ll
@@ -0,0 +1,83 @@
+; RUN: opt -inline < %s -S -o - -inline-threshold=8 | FileCheck %s
+
+declare void @llvm.lifetime.start(i64 %size, i8* nocapture %ptr)
+
+@glbl = external global i32
+
+define void @outer1() {
+; CHECK: @outer1
+; CHECK-NOT: call void @inner1
+  %ptr = alloca i32
+  call void @inner1(i32* %ptr)
+  ret void
+}
+
+define void @inner1(i32 *%ptr) {
+  %A = load i32* %ptr
+  store i32 0, i32* %ptr
+  %C = getelementptr i32* %ptr, i32 0
+  %D = getelementptr i32* %ptr, i32 1
+  %E = bitcast i32* %ptr to i8*
+  %F = select i1 false, i32* %ptr, i32* @glbl
+  call void @llvm.lifetime.start(i64 0, i8* %E)
+  ret void
+}
+
+define void @outer2() {
+; CHECK: @outer2
+; CHECK: call void @inner2
+  %ptr = alloca i32
+  call void @inner2(i32* %ptr)
+  ret void
+}
+
+; %D poisons this call, scalar-repl can't handle that instruction.
+define void @inner2(i32 *%ptr) {
+  %A = load i32* %ptr
+  store i32 0, i32* %ptr
+  %C = getelementptr i32* %ptr, i32 0
+  %D = getelementptr i32* %ptr, i32 %A
+  %E = bitcast i32* %ptr to i8*
+  %F = select i1 false, i32* %ptr, i32* @glbl
+  call void @llvm.lifetime.start(i64 0, i8* %E)
+  ret void
+}
+
+define void @outer3() {
+; CHECK: @outer3
+; CHECK-NOT: call void @inner3
+  %ptr = alloca i32
+  call void @inner3(i32* %ptr, i1 undef)
+  ret void
+}
+
+define void @inner3(i32 *%ptr, i1 %x) {
+  %A = icmp eq i32* %ptr, null
+  %B = and i1 %x, %A
+  br i1 %A, label %bb.true, label %bb.false
+bb.true:
+  ; This block musn't be counted in the inline cost.
+  %t1 = load i32* %ptr
+  %t2 = add i32 %t1, 1
+  %t3 = add i32 %t2, 1
+  %t4 = add i32 %t3, 1
+  %t5 = add i32 %t4, 1
+  %t6 = add i32 %t5, 1
+  %t7 = add i32 %t6, 1
+  %t8 = add i32 %t7, 1
+  %t9 = add i32 %t8, 1
+  %t10 = add i32 %t9, 1
+  %t11 = add i32 %t10, 1
+  %t12 = add i32 %t11, 1
+  %t13 = add i32 %t12, 1
+  %t14 = add i32 %t13, 1
+  %t15 = add i32 %t14, 1
+  %t16 = add i32 %t15, 1
+  %t17 = add i32 %t16, 1
+  %t18 = add i32 %t17, 1
+  %t19 = add i32 %t18, 1
+  %t20 = add i32 %t19, 1
+  ret void
+bb.false:
+  ret void
+}