vendor/llvm/llvm-trunk-r162107

2 files changed, 25 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/memcpy.ll b/test/Transforms/InstCombine/memcpy.ll
index 8a2e3aaad0270..3a68ff95af82d 100644
--- a/test/Transforms/InstCombine/memcpy.ll
+++ b/test/Transforms/InstCombine/memcpy.ll
@@ -1,6 +1,7 @@
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
+declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
 
 define void @test1(i8* %a) {
         tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 false)
@@ -17,3 +18,10 @@ define void @test2(i8* %a) {
 ; CHECK: define void @test2
 ; CHECK-NEXT: call void @llvm.memcpy
 }
+
+define void @test3(i8* %d, i8* %s) {
+        tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
+        ret void
+; CHECK: define void @test3
+; CHECK-NEXT: call void @llvm.memcpy
+}
diff --git a/test/Transforms/InstCombine/objsize.ll b/test/Transforms/InstCombine/objsize.ll
index dbb0ffcd67422..d7e292155cd79 100644
--- a/test/Transforms/InstCombine/objsize.ll
+++ b/test/Transforms/InstCombine/objsize.ll
@@ -238,3 +238,20 @@ xpto:
 return:
   ret i32 42
 }
+
+; CHECK: @PR13621
+define i32 @PR13621(i1 %bool) nounwind {
+entry:
+  %cond = or i1 %bool, true
+  br i1 %cond, label %return, label %xpto
+
+; technically reachable, but this malformed IR may appear as a result of constant propagation
+xpto:
+  %gep = getelementptr i8* %gep, i32 1
+  %o = call i32 @llvm.objectsize.i32(i8* %gep, i1 true)
+; CHECK: ret i32 undef
+  ret i32 %o
+
+return:
+  ret i32 7
+}