1 files changed, 59 insertions, 0 deletions
diff --git a/test/CodeGen/X86/lea-5.ll b/test/CodeGen/X86/lea-5.ll
new file mode 100644
index 0000000..50d3aaf
--- /dev/null
+++ b/test/CodeGen/X86/lea-5.ll
@@ -0,0 +1,59 @@
+; test for more complicated forms of lea operands which can be generated
+; in loop optimized cases.
+; See also http://llvm.org/bugs/show_bug.cgi?id=20016
+
+; RUN: llc < %s -mtriple=x86_64-linux -O2        | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-linux-gnux32 -O2 | FileCheck %s -check-prefix=X32
+; RUN: llc < %s -mtriple=x86_64-nacl -O2 | FileCheck %s -check-prefix=X32
+
+; Function Attrs: nounwind readnone uwtable
+define void @foo(i32 %x, i32 %d) #0 {
+entry:
+  %a = alloca [8 x i32], align 16
+  br label %while.cond
+
+while.cond:                                       ; preds = %while.cond, %entry
+  %d.addr.0 = phi i32 [ %d, %entry ], [ %inc, %while.cond ]
+  %arrayidx = getelementptr inbounds [8 x i32]* %a, i32 0, i32 %d.addr.0
+
+; CHECK: leaq	-40(%rsp,%r{{[^,]*}},4), %rax
+; X32:   leal	-40(%rsp,%r{{[^,]*}},4), %eax
+  %0 = load i32* %arrayidx, align 4
+  %cmp1 = icmp eq i32 %0, 0
+  %inc = add nsw i32 %d.addr.0, 1
+
+; CHECK: leaq	4(%r{{[^,]*}}), %r{{[^,]*}}
+; X32:   leal	4(%r{{[^,]*}}), %e{{[^,]*}}
+  br i1 %cmp1, label %while.end, label %while.cond
+
+while.end:                                        ; preds = %while.cond
+  ret void
+}
+
+; The same test as above but with enforsed stack realignment (%a aligned by 64)
+; to check one more case of correct lea generation.
+
+; Function Attrs: nounwind readnone uwtable
+define void @bar(i32 %x, i32 %d) #0 {
+entry:
+  %a = alloca [8 x i32], align 64
+  br label %while.cond
+
+while.cond:                                       ; preds = %while.cond, %entry
+  %d.addr.0 = phi i32 [ %d, %entry ], [ %inc, %while.cond ]
+  %arrayidx = getelementptr inbounds [8 x i32]* %a, i32 0, i32 %d.addr.0
+
+; CHECK: leaq	(%rsp,%r{{[^,]*}},4), %rax
+; X32:   leal	(%rsp,%r{{[^,]*}},4), %eax
+  %0 = load i32* %arrayidx, align 4
+  %cmp1 = icmp eq i32 %0, 0
+  %inc = add nsw i32 %d.addr.0, 1
+
+; CHECK: leaq	4(%r{{[^,]*}}), %r{{[^,]*}}
+; X32:   leal	4(%r{{[^,]*}}), %e{{[^,]*}}
+  br i1 %cmp1, label %while.end, label %while.cond
+
+while.end:                                        ; preds = %while.cond
+  ret void
+}
+