1 files changed, 151 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/fp-move-05.ll b/test/CodeGen/SystemZ/fp-move-05.ll
new file mode 100644
index 0000000..66ad048
--- /dev/null
+++ b/test/CodeGen/SystemZ/fp-move-05.ll
@@ -0,0 +1,151 @@
+; Test 128-bit floating-point loads.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Check loads with no offset.
+define double @f1(i64 %src) {
+; CHECK: f1:
+; CHECK: ld %f0, 0(%r2)
+; CHECK: ld %f2, 8(%r2)
+; CHECK: br %r14
+  %ptr = inttoptr i64 %src to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the highest aligned offset that allows LD for both halves.
+define double @f2(i64 %src) {
+; CHECK: f2:
+; CHECK: ld %f0, 4080(%r2)
+; CHECK: ld %f2, 4088(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, 4080
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the next doubleword up, which requires a mixture of LD and LDY.
+define double @f3(i64 %src) {
+; CHECK: f3:
+; CHECK: ld %f0, 4088(%r2)
+; CHECK: ldy %f2, 4096(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, 4088
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the next doubleword after that, which requires LDY for both halves.
+define double @f4(i64 %src) {
+; CHECK: f4:
+; CHECK: ldy %f0, 4096(%r2)
+; CHECK: ldy %f2, 4104(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, 4096
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the highest aligned offset that allows LDY for both halves.
+define double @f5(i64 %src) {
+; CHECK: f5:
+; CHECK: ldy %f0, 524272(%r2)
+; CHECK: ldy %f2, 524280(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, 524272
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the next doubleword up, which requires separate address logic.
+; Other sequences besides this one would be OK.
+define double @f6(i64 %src) {
+; CHECK: f6:
+; CHECK: lay %r1, 524280(%r2)
+; CHECK: ld %f0, 0(%r1)
+; CHECK: ld %f2, 8(%r1)
+; CHECK: br %r14
+  %add = add i64 %src, 524280
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the highest aligned negative offset, which needs a combination of
+; LDY and LD.
+define double @f7(i64 %src) {
+; CHECK: f7:
+; CHECK: ldy %f0, -8(%r2)
+; CHECK: ld %f2, 0(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, -8
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the next doubleword down, which requires LDY for both halves.
+define double @f8(i64 %src) {
+; CHECK: f8:
+; CHECK: ldy %f0, -16(%r2)
+; CHECK: ldy %f2, -8(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, -16
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the lowest offset that allows LDY for both halves.
+define double @f9(i64 %src) {
+; CHECK: f9:
+; CHECK: ldy %f0, -524288(%r2)
+; CHECK: ldy %f2, -524280(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, -524288
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check the next doubleword down, which requires separate address logic.
+; Other sequences besides this one would be OK.
+define double @f10(i64 %src) {
+; CHECK: f10:
+; CHECK: agfi %r2, -524296
+; CHECK: ld %f0, 0(%r2)
+; CHECK: ld %f2, 8(%r2)
+; CHECK: br %r14
+  %add = add i64 %src, -524296
+  %ptr = inttoptr i64 %add to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}
+
+; Check that indices are allowed.
+define double @f11(i64 %src, i64 %index) {
+; CHECK: f11:
+; CHECK: ld %f0, 4088({{%r2,%r3|%r3,%r2}})
+; CHECK: ldy %f2, 4096({{%r2,%r3|%r3,%r2}})
+; CHECK: br %r14
+  %add1 = add i64 %src, %index
+  %add2 = add i64 %add1, 4088
+  %ptr = inttoptr i64 %add2 to fp128 *
+  %val = load fp128 *%ptr
+  %trunc = fptrunc fp128 %val to double
+  ret double %trunc
+}