Vendor import of llvm release_34 branch r197841 (effectively, 3.4 RC3):vendor/llvm/llvm-release_34-r197841

https://llvm.org/svn/llvm-project/llvm/branches/release_34@197841

1 files changed, 30 insertions, 0 deletions

diff --git a/test/CodeGen/X86/merge_store.ll b/test/CodeGen/X86/merge_store.ll
new file mode 100644
index 000000000000..940688c6252f
--- /dev/null
+++ b/test/CodeGen/X86/merge_store.ll
@@ -0,0 +1,30 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 | FileCheck %s
+
+define void @merge_store(i32* nocapture %a) {
+; CHECK-LABEL: merge_store:
+; CHECK: movq
+; CHECK: movq
+entry:
+  br label %for.body
+
+  for.body:
+  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
+  %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
+  store i32 1, i32* %arrayidx, align 4
+  %0 = or i64 %indvars.iv, 1
+  %arrayidx2 = getelementptr inbounds i32* %a, i64 %0
+  store i32 1, i32* %arrayidx2, align 4
+  %1 = or i64 %indvars.iv, 2
+  %arrayidx5 = getelementptr inbounds i32* %a, i64 %1
+  store i32 1, i32* %arrayidx5, align 4
+  %2 = or i64 %indvars.iv, 3
+  %arrayidx8 = getelementptr inbounds i32* %a, i64 %2
+  store i32 1, i32* %arrayidx8, align 4
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 4
+  %3 = trunc i64 %indvars.iv.next to i32
+  %cmp = icmp slt i32 %3, 1000
+  br i1 %cmp, label %for.body, label %for.end
+
+  for.end:
+  ret void
+}