1 files changed, 158 insertions, 0 deletions
diff --git a/test/CodeGen/X86/test-shrink.ll b/test/CodeGen/X86/test-shrink.ll
new file mode 100644
index 0000000..1d63693
--- /dev/null
+++ b/test/CodeGen/X86/test-shrink.ll
@@ -0,0 +1,158 @@
+; RUN: llc < %s -march=x86-64 | FileCheck %s --check-prefix=CHECK-64
+; RUN: llc < %s -march=x86 | FileCheck %s --check-prefix=CHECK-32
+
+; CHECK-64: g64xh:
+; CHECK-64:   testb $8, %ah
+; CHECK-64:   ret
+; CHECK-32: g64xh:
+; CHECK-32:   testb $8, %ah
+; CHECK-32:   ret
+define void @g64xh(i64 inreg %x) nounwind {
+  %t = and i64 %x, 2048
+  %s = icmp eq i64 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g64xl:
+; CHECK-64:   testb $8, %dil
+; CHECK-64:   ret
+; CHECK-32: g64xl:
+; CHECK-32:   testb $8, %al
+; CHECK-32:   ret
+define void @g64xl(i64 inreg %x) nounwind {
+  %t = and i64 %x, 8
+  %s = icmp eq i64 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g32xh:
+; CHECK-64:   testb $8, %ah
+; CHECK-64:   ret
+; CHECK-32: g32xh:
+; CHECK-32:   testb $8, %ah
+; CHECK-32:   ret
+define void @g32xh(i32 inreg %x) nounwind {
+  %t = and i32 %x, 2048
+  %s = icmp eq i32 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g32xl:
+; CHECK-64:   testb $8, %dil
+; CHECK-64:   ret
+; CHECK-32: g32xl:
+; CHECK-32:   testb $8, %al
+; CHECK-32:   ret
+define void @g32xl(i32 inreg %x) nounwind {
+  %t = and i32 %x, 8
+  %s = icmp eq i32 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g16xh:
+; CHECK-64:   testb $8, %ah
+; CHECK-64:   ret
+; CHECK-32: g16xh:
+; CHECK-32:   testb $8, %ah
+; CHECK-32:   ret
+define void @g16xh(i16 inreg %x) nounwind {
+  %t = and i16 %x, 2048
+  %s = icmp eq i16 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g16xl:
+; CHECK-64:   testb $8, %dil
+; CHECK-64:   ret
+; CHECK-32: g16xl:
+; CHECK-32:   testb $8, %al
+; CHECK-32:   ret
+define void @g16xl(i16 inreg %x) nounwind {
+  %t = and i16 %x, 8
+  %s = icmp eq i16 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g64x16:
+; CHECK-64:   testw $-32640, %di
+; CHECK-64:   ret
+; CHECK-32: g64x16:
+; CHECK-32:   testw $-32640, %ax
+; CHECK-32:   ret
+define void @g64x16(i64 inreg %x) nounwind {
+  %t = and i64 %x, 32896
+  %s = icmp eq i64 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g32x16:
+; CHECK-64:   testw $-32640, %di
+; CHECK-64:   ret
+; CHECK-32: g32x16:
+; CHECK-32:   testw $-32640, %ax
+; CHECK-32:   ret
+define void @g32x16(i32 inreg %x) nounwind {
+  %t = and i32 %x, 32896
+  %s = icmp eq i32 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+; CHECK-64: g64x32:
+; CHECK-64:   testl $268468352, %edi
+; CHECK-64:   ret
+; CHECK-32: g64x32:
+; CHECK-32:   testl $268468352, %eax
+; CHECK-32:   ret
+define void @g64x32(i64 inreg %x) nounwind {
+  %t = and i64 %x, 268468352
+  %s = icmp eq i64 %t, 0
+  br i1 %s, label %yes, label %no
+
+yes:
+  call void @bar()
+  ret void
+no:
+  ret void
+}
+
+declare void @bar()