[SystemZ] Fold more spills

[oota-llvm.git] / test / CodeGen / SystemZ / int-mul-04.ll

diff --git a/test/CodeGen/SystemZ/int-mul-04.ll b/test/CodeGen/SystemZ/int-mul-04.ll
index 94c263978341f9b5178cfc4cfce1c5891f871bbf..b37b043fb6a36b0baa5027f8351935be3200c681 100644 (file)
--- a/test/CodeGen/SystemZ/int-mul-04.ll
+++ b/test/CodeGen/SystemZ/int-mul-04.ll
@@ -2,6 +2,8 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
 
+declare i64 @foo()
+
 ; Check MSGR.
 define i64 @f1(i64 %a, i64 %b) {
 ; CHECK: f1:
@@ -92,3 +94,46 @@ define i64 @f8(i64 %a, i64 %src, i64 %index) {
   %mul = mul i64 %a, %b
   ret i64 %mul
 }
+
+; Check that multiplications of spilled values can use MSG rather than MSGR.
+define i64 @f9(i64 *%ptr0) {
+; CHECK: f9:
+; CHECK: brasl %r14, foo@PLT
+; CHECK: msg %r2, 160(%r15)
+; CHECK: br %r14
+  %ptr1 = getelementptr i64 *%ptr0, i64 2
+  %ptr2 = getelementptr i64 *%ptr0, i64 4
+  %ptr3 = getelementptr i64 *%ptr0, i64 6
+  %ptr4 = getelementptr i64 *%ptr0, i64 8
+  %ptr5 = getelementptr i64 *%ptr0, i64 10
+  %ptr6 = getelementptr i64 *%ptr0, i64 12
+  %ptr7 = getelementptr i64 *%ptr0, i64 14
+  %ptr8 = getelementptr i64 *%ptr0, i64 16
+  %ptr9 = getelementptr i64 *%ptr0, i64 18
+
+  %val0 = load i64 *%ptr0
+  %val1 = load i64 *%ptr1
+  %val2 = load i64 *%ptr2
+  %val3 = load i64 *%ptr3
+  %val4 = load i64 *%ptr4
+  %val5 = load i64 *%ptr5
+  %val6 = load i64 *%ptr6
+  %val7 = load i64 *%ptr7
+  %val8 = load i64 *%ptr8
+  %val9 = load i64 *%ptr9
+
+  %ret = call i64 @foo()
+
+  %mul0 = mul i64 %ret, %val0
+  %mul1 = mul i64 %mul0, %val1
+  %mul2 = mul i64 %mul1, %val2
+  %mul3 = mul i64 %mul2, %val3
+  %mul4 = mul i64 %mul3, %val4
+  %mul5 = mul i64 %mul4, %val5
+  %mul6 = mul i64 %mul5, %val6
+  %mul7 = mul i64 %mul6, %val7
+  %mul8 = mul i64 %mul7, %val8
+  %mul9 = mul i64 %mul8, %val9
+
+  ret i64 %mul9
+}