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-rw-r--r--test/mem3.ssa48
1 files changed, 48 insertions, 0 deletions
diff --git a/test/mem3.ssa b/test/mem3.ssa
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index 0000000..a6cafd2
--- /dev/null
+++ b/test/mem3.ssa
@@ -0,0 +1,48 @@
+# Ember Sawady reported this bug
+# in stack-slot coalescing
+
+type :type.3 = align 8 { l 1, l 1 }
+type :tags.2 = { { :type.3 1 } }
+type :type.1 = align 8 { w 1, :tags.2 1 }
+type :tags.9 = { { w 1 } }
+type :type.8 = align 4 { w 1, :tags.9 1 }
+
+function :type.1 $func() {
+@start.0
+	%object.5 =l alloc8 24
+	%object.7 =l alloc4 8
+	%binding.21 =l alloc8 16
+	%object.23 =l alloc8 24
+@body.4
+	%.10 =l add %object.7, 4
+	jnz 1, @matches.13, @next.14
+@matches.13
+	# binding.21 gets fused with object.23
+	storel 1, %binding.21
+	%value.22 =l add %binding.21, 8
+	storel 2, %value.22
+	%.24 =l add %object.23, 8
+	# but the blit direction is not set correctly
+	blit %binding.21, %.24, 16
+	ret %object.23
+@next.14
+	storew 2543892678, %object.5
+	ret %object.5
+}
+
+export function w $main() {
+@start.27
+	%object.43 =l alloc8 24
+	%object.49 =l alloc8 24
+@body.28
+	%returns.34 =:type.1 call $func()
+	%value.47 =l add %returns.34, 16
+	%load.48 =l loadl %value.47
+	%.33 =w ceql %load.48, 2
+	jnz %.33, @passed.32, @failed.31
+@failed.31
+	call $abort()
+@passed.32
+	ret 0
+}
+