[SystemZ] Add CodeGen test cases
This adds all CodeGen tests for the SystemZ target.
This version of the patch incorporates feedback from a review by
Sean Silva. Thanks to all reviewers!
Patch by Richard Sandiford.
llvm-svn: 181204
diff --git a/llvm/test/CodeGen/SystemZ/fp-const-04.ll b/llvm/test/CodeGen/SystemZ/fp-const-04.ll
new file mode 100644
index 0000000..847c380
--- /dev/null
+++ b/llvm/test/CodeGen/SystemZ/fp-const-04.ll
@@ -0,0 +1,15 @@
+; Test loads of 64-bit floating-point constants that can be represented
+; as 32-bit constants.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CONST
+
+define double @f1() {
+; CHECK: f1:
+; CHECK: larl [[REGISTER:%r[1-5]]], {{.*}}
+; CHECK: ldeb %f0, 0([[REGISTER]])
+; CHECK: br %r14
+;
+; CONST: .long 1065353217
+ ret double 0x3ff0000020000000
+}