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+# Test cases where we spill from one frame index to another, both of which
+# are out of range of MVC, and both of which need emergency spill slots.
+# RUN: python %s | llc -mtriple=s390x-linux-gnu | FileCheck %s
+
+# CHECK: f1:
+# CHECK: %fallthru
+# CHECK-DAG: stg [[REG1:%r[0-9]+]], 8168(%r15)
+# CHECK-DAG: stg [[REG2:%r[0-9]+]], 8176(%r15)
+# CHECK-DAG: lay [[REG3:%r[0-9]+]], 8192(%r15)
+# CHECK-DAG: lay [[REG4:%r[0-9]+]], 4096(%r15)
+# CHECK: mvc 0(8,[[REG3]]), 4088([[REG4]])
+# CHECK-DAG: lg [[REG1]], 8168(%r15)
+# CHECK-DAG: lg [[REG2]], 8176(%r15)
+# CHECK: %skip
+# CHECK: br %r14
+
+# Arrange for %foo's spill slot to be at 8184(%r15) and the alloca area to be at
+# 8192(%r15). The two emergency spill slots live below that, so this requires
+# the first 8168 bytes to be used for the call. 160 of these bytes are
+# allocated for the ABI frame. There are also 5 argument registers, one of
+# which is used as a base pointer.
+args = (8168 - 160) / 8 + (5 - 1)
+
+print 'declare i64 *@foo(i64 *%s)' % (', i64' * args)
+print 'declare void @bar(i64 *)'
+print ''
+print 'define i64 @f1(i64 %foo) {'
+print 'entry:'
+
+# Make the allocation big, so that it goes at the top of the frame.
+print ' %array = alloca [1000 x i64]'
+print ' %area = getelementptr [1000 x i64] *%array, i64 0, i64 0'
+print ' %%base = call i64 *@foo(i64 *%%area%s)' % (', i64 0' * args)
+print ''
+
+# Make sure all GPRs are used. One is needed for the stack pointer and
+# another for %base, so we need 14 live values.
+count = 14
+for i in range(count):
+ print ' %%ptr%d = getelementptr i64 *%%base, i64 %d' % (i, i / 2)
+ print ' %%val%d = load volatile i64 *%%ptr%d' % (i, i)
+ print ''
+
+# Encourage the register allocator to give preference to these %vals
+# by using them several times.
+for j in range(4):
+ for i in range(count):
+ print ' store volatile i64 %%val%d, i64 *%%ptr%d' % (i, i)
+ print ''
+
+# Copy the incoming argument, which we expect to be spilled, to the frame
+# index for the alloca area. Also throw in a volatile store, so that this
+# block cannot be reordered with the surrounding code.
+print ' %cond = icmp eq i64 %val0, %val1'
+print ' br i1 %cond, label %skip, label %fallthru'
+print ''
+print 'fallthru:'
+print ' store i64 %foo, i64 *%area'
+print ' store volatile i64 %val0, i64 *%ptr0'
+print ' br label %skip'
+print ''
+print 'skip:'
+
+# Use each %val a few more times to emphasise the point, and to make sure
+# that they are live across the store of %foo.
+for j in range(4):
+ for i in range(count):
+ print ' store volatile i64 %%val%d, i64 *%%ptr%d' % (i, i)
+ print ''
+
+print ' call void @bar(i64 *%area)'
+print ' ret i64 0'
+print '}'