1 files changed, 33 insertions, 11 deletions
diff --git a/test/CodeGen/SystemZ/int-const-01.ll b/test/CodeGen/SystemZ/int-const-01.ll
index a580154e6b572..e94c05897faec 100644
--- a/test/CodeGen/SystemZ/int-const-01.ll
+++ b/test/CodeGen/SystemZ/int-const-01.ll
@@ -2,9 +2,11 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
 
+declare void @foo(i32, i32, i32, i32)
+
 ; Check 0.
 define i32 @f1() {
-; CHECK: f1:
+; CHECK-LABEL: f1:
 ; CHECK: lhi %r2, 0
 ; CHECK: br %r14
   ret i32 0
@@ -12,7 +14,7 @@ define i32 @f1() {
 
 ; Check the high end of the LHI range.
 define i32 @f2() {
-; CHECK: f2:
+; CHECK-LABEL: f2:
 ; CHECK: lhi %r2, 32767
 ; CHECK: br %r14
   ret i32 32767
@@ -20,7 +22,7 @@ define i32 @f2() {
 
 ; Check the next value up, which must use LLILL instead.
 define i32 @f3() {
-; CHECK: f3:
+; CHECK-LABEL: f3:
 ; CHECK: llill %r2, 32768
 ; CHECK: br %r14
   ret i32 32768
@@ -28,7 +30,7 @@ define i32 @f3() {
 
 ; Check the high end of the LLILL range.
 define i32 @f4() {
-; CHECK: f4:
+; CHECK-LABEL: f4:
 ; CHECK: llill %r2, 65535
 ; CHECK: br %r14
   ret i32 65535
@@ -36,7 +38,7 @@ define i32 @f4() {
 
 ; Check the first useful LLILH value, which is the next one up.
 define i32 @f5() {
-; CHECK: f5:
+; CHECK-LABEL: f5:
 ; CHECK: llilh %r2, 1
 ; CHECK: br %r14
   ret i32 65536
@@ -44,7 +46,7 @@ define i32 @f5() {
 
 ; Check the first useful IILF value, which is the next one up again.
 define i32 @f6() {
-; CHECK: f6:
+; CHECK-LABEL: f6:
 ; CHECK: iilf %r2, 65537
 ; CHECK: br %r14
   ret i32 65537
@@ -52,7 +54,7 @@ define i32 @f6() {
 
 ; Check the high end of the LLILH range.
 define i32 @f7() {
-; CHECK: f7:
+; CHECK-LABEL: f7:
 ; CHECK: llilh %r2, 65535
 ; CHECK: br %r14
   ret i32 -65536
@@ -60,7 +62,7 @@ define i32 @f7() {
 
 ; Check the next value up, which must use IILF.
 define i32 @f8() {
-; CHECK: f8:
+; CHECK-LABEL: f8:
 ; CHECK: iilf %r2, 4294901761
 ; CHECK: br %r14
   ret i32 -65535
@@ -68,7 +70,7 @@ define i32 @f8() {
 
 ; Check the highest useful IILF value, 0xffff7fff
 define i32 @f9() {
-; CHECK: f9:
+; CHECK-LABEL: f9:
 ; CHECK: iilf %r2, 4294934527
 ; CHECK: br %r14
   ret i32 -32769
@@ -76,7 +78,7 @@ define i32 @f9() {
 
 ; Check the next value up, which should use LHI.
 define i32 @f10() {
-; CHECK: f10:
+; CHECK-LABEL: f10:
 ; CHECK: lhi %r2, -32768
 ; CHECK: br %r14
   ret i32 -32768
@@ -84,8 +86,28 @@ define i32 @f10() {
 
 ; Check -1.
 define i32 @f11() {
-; CHECK: f11:
+; CHECK-LABEL: f11:
 ; CHECK: lhi %r2, -1
 ; CHECK: br %r14
   ret i32 -1
 }
+
+; Check that constant loads are rematerialized.
+define i32 @f12() {
+; CHECK-LABEL: f12:
+; CHECK-DAG: lhi %r2, 42
+; CHECK-DAG: llill %r3, 32768
+; CHECK-DAG: llilh %r4, 1
+; CHECK-DAG: iilf %r5, 65537
+; CHECK: brasl %r14, foo@PLT
+; CHECK-DAG: lhi %r2, 42
+; CHECK-DAG: llill %r3, 32768
+; CHECK-DAG: llilh %r4, 1
+; CHECK-DAG: iilf %r5, 65537
+; CHECK: brasl %r14, foo@PLT
+; CHECK: lhi %r2, 42
+; CHECK: br %r14
+  call void @foo(i32 42, i32 32768, i32 65536, i32 65537)
+  call void @foo(i32 42, i32 32768, i32 65536, i32 65537)
+  ret i32 42
+}