1 files changed, 62 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/hoist-spill-lpad.ll b/llvm/test/CodeGen/X86/hoist-spill-lpad.ll
new file mode 100644
index 00000000000..3171f6f9f6f
--- /dev/null
+++ b/llvm/test/CodeGen/X86/hoist-spill-lpad.ll
@@ -0,0 +1,62 @@
+; RUN: llc < %s | FileCheck %s
+;
+; PR27612. The following spill is hoisted from two locations: the fall
+; through succ block and the landingpad block of a call which may throw
+; exception. If it is not hoisted before the call, the spill will be
+; missing on the landingpad path.
+;
+; CHECK-LABEL: _Z3foov:
+; CHECK: movq  %rbx, (%rsp)          # 8-byte Spill
+; CHECK-NEXT: callq _Z3goov
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+@a = global [20 x i64] zeroinitializer, align 16
+@_ZTIi = external constant i8*
+
+; Function Attrs: uwtable
+define void @_Z3foov() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
+entry:
+  %tmp = load i64, i64* getelementptr inbounds ([20 x i64], [20 x i64]* @a, i64 0, i64 1), align 8
+  invoke void @_Z3goov()
+          to label %try.cont unwind label %lpad
+
+lpad:                                             ; preds = %entry
+  %tmp1 = landingpad { i8*, i32 }
+          cleanup
+          catch i8* bitcast (i8** @_ZTIi to i8*)
+  %tmp2 = extractvalue { i8*, i32 } %tmp1, 1
+  %tmp3 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
+  %matches = icmp eq i32 %tmp2, %tmp3
+  br i1 %matches, label %catch, label %ehcleanup
+
+catch:                                            ; preds = %lpad
+  %tmp4 = extractvalue { i8*, i32 } %tmp1, 0
+  %tmp5 = tail call i8* @__cxa_begin_catch(i8* %tmp4)
+  store i64 %tmp, i64* getelementptr inbounds ([20 x i64], [20 x i64]* @a, i64 0, i64 2), align 16
+  tail call void asm sideeffect "", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{memory},~{dirflag},~{fpsr},~{flags}"()
+  store i64 %tmp, i64* getelementptr inbounds ([20 x i64], [20 x i64]* @a, i64 0, i64 3), align 8
+  tail call void @__cxa_end_catch()
+  br label %try.cont
+
+try.cont:                                         ; preds = %catch, %entry
+  store i64 %tmp, i64* getelementptr inbounds ([20 x i64], [20 x i64]* @a, i64 0, i64 4), align 16
+  tail call void asm sideeffect "", "~{rax},~{rbx},~{rcx},~{rdx},~{rsi},~{rdi},~{rbp},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15},~{memory},~{dirflag},~{fpsr},~{flags}"()
+  store i64 %tmp, i64* getelementptr inbounds ([20 x i64], [20 x i64]* @a, i64 0, i64 5), align 8
+  ret void
+
+ehcleanup:                                        ; preds = %lpad
+  resume { i8*, i32 } %tmp1
+}
+
+declare void @_Z3goov()
+
+declare i32 @__gxx_personality_v0(...)
+
+; Function Attrs: nounwind readnone
+declare i32 @llvm.eh.typeid.for(i8*)
+
+declare i8* @__cxa_begin_catch(i8*)
+
+declare void @__cxa_end_catch()