x86 isel tweak: use lea (%reg,%reg) instead of lea (,%reg,2).

[oota-llvm.git] / test / CodeGen / X86 / avoid-lea-scale2.ll

diff --git a/test/CodeGen/X86/avoid-lea-scale2.ll b/test/CodeGen/X86/avoid-lea-scale2.ll
new file mode 100644 (file)
index 0000000..c84662d
--- /dev/null
+++ b/test/CodeGen/X86/avoid-lea-scale2.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep {leal.*-2(\[%\]rdi,\[%\]rdi)}
+
+define i32 @foo(i32 %x) nounwind readnone {
+  %t0 = shl i32 %x, 1
+  %t1 = add i32 %t0, -2
+  ret i32 %t1
+}
+