vendor/llvm/llvm-release_33-r183502

1 files changed, 41 insertions, 0 deletions

diff --git a/test/CodeGen/SystemZ/asm-13.ll b/test/CodeGen/SystemZ/asm-13.ll
new file mode 100644
index 000000000000..af3fdb361533
--- /dev/null
+++ b/test/CodeGen/SystemZ/asm-13.ll
@@ -0,0 +1,41 @@
+; Test the "K" constraint (16-bit signed constants).
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Test 1 below the first valid value.
+define i32 @f1() {
+; CHECK: f1:
+; CHECK: iilf [[REG:%r[0-5]]], 4294934527
+; CHECK: blah %r2 [[REG]]
+; CHECK: br %r14
+  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 -32769)
+  ret i32 %val
+}
+
+; Test the first valid value.
+define i32 @f2() {
+; CHECK: f2:
+; CHECK: blah %r2 -32768
+; CHECK: br %r14
+  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 -32768)
+  ret i32 %val
+}
+
+; Test the last valid value.
+define i32 @f3() {
+; CHECK: f3:
+; CHECK: blah %r2 32767
+; CHECK: br %r14
+  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 32767)
+  ret i32 %val
+}
+
+; Test 1 above the last valid value.
+define i32 @f4() {
+; CHECK: f4:
+; CHECK: llill [[REG:%r[0-5]]], 32768
+; CHECK: blah %r2 [[REG]]
+; CHECK: br %r14
+  %val = call i32 asm "blah $0 $1", "=&r,rK" (i32 32768)
+  ret i32 %val
+}