Example: add constant expression propagation

20 files changed, 369 insertions, 0 deletions

diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_1.S b/test/samples/x86_32/cst_propag/x86_32_sc_1.S
new file mode 100644
index 00000000..0fe12e04
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_1.S
@@ -0,0 +1,21 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, 1
+	MOV         EDX, 2
+	LEA         ECX, DWORD PTR [ECX+0x4]
+	LEA         EBX, DWORD PTR [ECX+0x1]
+	CMP         CL, 0x1
+	JZ          test1
+	LEA         EBX, DWORD PTR [EBX-1]
+	JMP         end
+test1:
+	LEA         EBX, DWORD PTR [EBX-1]
+end:
+	MOV         EAX, EBX
+	LEA         EAX, DWORD PTR [EAX + EDX]
+	MOV         EDX, DWORD PTR [EBP+0xC]
+	LEA         EAX, DWORD PTR [EAX + EDX]
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_10.S b/test/samples/x86_32/cst_propag/x86_32_sc_10.S
new file mode 100644
index 00000000..84eae85b
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_10.S
@@ -0,0 +1,17 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [ESP+0x8]
+	INC         EBX
+	CMP         CL, 0x1
+	JZ          test1
+	MOV         EAX, 8
+	JMP         end
+test1:
+	MOV         EAX, 4
+end:
+	LEA         EBX, DWORD PTR [EAX+EBX]
+	MOV         EAX, EBX
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_11.S b/test/samples/x86_32/cst_propag/x86_32_sc_11.S
new file mode 100644
index 00000000..272c76da
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_11.S
@@ -0,0 +1,11 @@
+main:
+	MOV         ECX, 10
+loop1:
+	DEC         ECX
+	JNZ         less
+	JMP         goon
+less:
+	DEC         ECX
+goon:
+	JNZ         loop1
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_12.S b/test/samples/x86_32/cst_propag/x86_32_sc_12.S
new file mode 100644
index 00000000..3420b882
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_12.S
@@ -0,0 +1,12 @@
+main:
+	MOV         EBX, 1
+	MOV         ECX, 2
+	CMP         EDX, 3
+	JNZ         test1
+	ADD         EBX, 1
+	JMP         goon
+test1:
+	ADD         ECX, 1
+goon:
+	LEA         EAX, DWORD PTR [EBX+ECX]
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_13.S b/test/samples/x86_32/cst_propag/x86_32_sc_13.S
new file mode 100644
index 00000000..08b9a891
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_13.S
@@ -0,0 +1,7 @@
+main:
+	MOV         ECX, 10
+loop:
+	DEC         ECX
+	JNZ         loop
+	MOV         EAX, ECX
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_14.S b/test/samples/x86_32/cst_propag/x86_32_sc_14.S
new file mode 100644
index 00000000..17cad5d7
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_14.S
@@ -0,0 +1,10 @@
+main:
+	MOV         ECX, 10
+	MOV         EDX, 10
+loop:
+	INC         EDX
+	DEC         EDX
+	DEC         ECX
+	JNZ         loop
+	MOV         EAX, EDX
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_15.S b/test/samples/x86_32/cst_propag/x86_32_sc_15.S
new file mode 100644
index 00000000..03a3c121
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_15.S
@@ -0,0 +1,16 @@
+main:
+	ADD         EDI, 1
+	MOV         ECX, 10
+loop1:
+	MOV         EDX, 10
+	INC         EDI
+loop2:
+	ADD         EDI, 2
+	SUB         EDI, 2
+	SUB         EDX, 1
+	JNZ         loop2
+	DEC         EDI
+	SUB         ECX, 1
+	JNZ         loop1
+	MOV         EAX, EDI
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_16.S b/test/samples/x86_32/cst_propag/x86_32_sc_16.S
new file mode 100644
index 00000000..d54e2657
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_16.S
@@ -0,0 +1,17 @@
+main:
+	MOV         EBX, 1
+	ADD         EDI, 1
+	MOV         ECX, 10
+loop1:
+	MOV         EDX, 10
+	INC         EDI
+loop2:
+	LEA         EDI, DWORD PTR [EDI+EBX]
+	LEA         EDI, DWORD PTR [EDI-1]
+	SUB         EDX, 1
+	JNZ         loop2
+	DEC         EDI
+	SUB         ECX, 1
+	JNZ         loop1
+	MOV         EAX, EDI
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_17.S b/test/samples/x86_32/cst_propag/x86_32_sc_17.S
new file mode 100644
index 00000000..576c02e2
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_17.S
@@ -0,0 +1,8 @@
+main:
+	MOV         EBX, 1
+	ADD         EDI, 1
+	SUB         EBX, EDI
+	SUB         EDI, 1
+	ADD         EBX, EDI
+	MOV         EAX, EBX
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_18.S b/test/samples/x86_32/cst_propag/x86_32_sc_18.S
new file mode 100644
index 00000000..7d29abdb
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_18.S
@@ -0,0 +1,33 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         EAX, DWORD PTR [EBP+0x8]
+	MOV         EBX, DWORD PTR [EBP+0xC]
+	ADD         EAX, EBX
+	TEST        EAX, EAX
+	JNZ         test
+	PUSH        1
+	PUSH        2
+	PUSH        DWORD PTR [EBP+0x10]
+	CALL        func1
+	ADD         ESP, 0xC
+	JMP         goon
+test:
+	MOV         ECX, 10
+loop:
+	PUSH        1
+	PUSH        2
+	CALL        func2
+	ADD         ESP, 0x8
+	DEC         ECX
+	JNZ         loop
+goon:
+	MOV         ESP, EBP
+	POP         EBP
+	RET
+
+
+func1:
+	RET
+func2:
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_19.S b/test/samples/x86_32/cst_propag/x86_32_sc_19.S
new file mode 100644
index 00000000..0b0e0837
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_19.S
@@ -0,0 +1,16 @@
+main:
+
+	MOV         EBX, 1
+	MOV         ECX, 1
+	CMP         EDX, 10
+	JZ          test1
+	ADD         EBX, 1
+	ADD         ECX, 1
+	JMP         gogon
+test1:
+	ADD         EBX, 2
+	ADD         ECX, 2
+gogon:
+	ADD         EAX, EBX
+	ADD         EAX, ECX
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_2.S b/test/samples/x86_32/cst_propag/x86_32_sc_2.S
new file mode 100644
index 00000000..96e10fa6
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_2.S
@@ -0,0 +1,21 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [ESP+0x8]
+	MOV         EDX, DWORD PTR [EBP+0xC]
+	LEA         ECX, DWORD PTR [ECX+0x4]
+	LEA         EBX, DWORD PTR [EBX+0x1]
+	CMP         CL, 0x1
+	JZ          test1
+	LEA         EBX, DWORD PTR [EBX-1]
+	JMP         end
+test1:
+	LEA         EBX, DWORD PTR [EBX+0x1]
+end:
+	MOV         EAX, EBX
+	LEA         EAX, DWORD PTR [EAX + EDX]
+	MOV         EDX, DWORD PTR [EBP+0xC]
+	LEA         EAX, DWORD PTR [EAX + EDX]
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_20.S b/test/samples/x86_32/cst_propag/x86_32_sc_20.S
new file mode 100644
index 00000000..4f2b82c6
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_20.S
@@ -0,0 +1,19 @@
+main:
+	MOV         EBX, 0
+	MOV         ECX, 0
+
+	CMP         EDX, 0
+	JNZ         test1
+	JMP         goon
+test1:
+	MOV         EDX, 1
+	LEA         EDX, DWORD PTR [EDX+0xF]
+	LEA         EBX, DWORD PTR [EBX+EDX]
+	MOV         EDX, 2
+	LEA         EDX, DWORD PTR [EDX+0xE]
+	MOV         ECX, EDX
+	LEA         EBX, DWORD PTR [EBX+ECX]
+	JNZ         test1
+goon:
+	MOV         EAX, EBX
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_3.S b/test/samples/x86_32/cst_propag/x86_32_sc_3.S
new file mode 100644
index 00000000..46d2afff
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_3.S
@@ -0,0 +1,15 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [EBP+0x8]
+loop:
+	SUB         ECX, 1
+	JZ          end
+	PUSH        EDX
+	POP         ESI
+	JMP         loop
+end:
+	MOV         EAX, DWORD PTR [ESP+0xC]
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_4.S b/test/samples/x86_32/cst_propag/x86_32_sc_4.S
new file mode 100644
index 00000000..1f9e82a3
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_4.S
@@ -0,0 +1,15 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [EBP+0x8]
+loop:
+	PUSH        EDX
+	POP         ESI
+	SUB         ECX, 1
+	JZ          end
+	JMP         loop
+end:
+	MOV         EAX, DWORD PTR [ESP+0xC]
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_5.S b/test/samples/x86_32/cst_propag/x86_32_sc_5.S
new file mode 100644
index 00000000..b9d7e08a
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_5.S
@@ -0,0 +1,24 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [EBP+0x8]
+
+	SUB         ECX, 1
+	JZ          test1
+	SUB         ECX, 1
+	JZ          test2
+	SUB         ECX, 1
+	JZ          test3
+
+	JMP         end
+test1:
+	INC         EAX
+test2:
+	INC         EAX
+test3:
+	INC         EAX
+end:
+	INC         EAX
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_6.S b/test/samples/x86_32/cst_propag/x86_32_sc_6.S
new file mode 100644
index 00000000..65fc2b8b
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_6.S
@@ -0,0 +1,37 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [EBP+0x8]
+
+	INC         EAX
+	SUB         ECX, 1
+	JZ          test1
+	ADD         EAX, 1
+	JMP         go1
+test1:
+	ADD         EAX, 2
+go1:
+
+
+	INC         EAX
+	SUB         ECX, 1
+	JZ          test2
+	ADD         EAX, 0x10
+	JMP         go2
+test2:
+	ADD         EAX, 0x20
+go2:
+
+	INC         EAX
+	SUB         ECX, 1
+	JZ          test3
+	ADD         EAX, 0x30
+	JMP         go3
+test3:
+	ADD         EAX, 0x40
+go3:
+
+	INC         EAX
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_7.S b/test/samples/x86_32/cst_propag/x86_32_sc_7.S
new file mode 100644
index 00000000..96c5fc6e
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_7.S
@@ -0,0 +1,16 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [EBP+0x8]
+	INC         EAX
+
+loop:
+	INC         EAX
+	DEC         EAX
+	SUB         ECX, 1
+	JZ          loop
+
+	INC         EAX
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_8.S b/test/samples/x86_32/cst_propag/x86_32_sc_8.S
new file mode 100644
index 00000000..5127c0fa
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_8.S
@@ -0,0 +1,18 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, DWORD PTR [EBP+0x8]
+	INC         EAX
+
+loop:
+	MOV         EDX, 1
+	MOV         ESI, 1
+	ADD         EAX, EDX
+	SUB         EAX, ESI
+	SUB         ECX, 1
+	JZ          loop
+
+	INC         EAX
+	MOV         ESP, EBP
+	POP         EBP
+	RET
diff --git a/test/samples/x86_32/cst_propag/x86_32_sc_9.S b/test/samples/x86_32/cst_propag/x86_32_sc_9.S
new file mode 100644
index 00000000..0b01305b
--- /dev/null
+++ b/test/samples/x86_32/cst_propag/x86_32_sc_9.S
@@ -0,0 +1,36 @@
+main:
+	PUSH        EBP
+	MOV         EBP, ESP
+	MOV         ECX, 10 ; DWORD PTR [EBP+0x8]
+
+	MOV         EBX, 0x1000   ;
+	INC         EBX		  ; EBX = 0x1001
+	MOV         EAX, EBX	  ; EAX = 0x1001
+	MOV         EBX, 0x10001  ; EBX = 0x10001
+	DEC         EBX		  ; EBX = 0x10000
+	MOV         ESI, EBX	  ; ESI = 0x10000
+				  ;
+	ADD         EDI, EAX	  ; EDI += 0x1001
+	ADD         EDI, ESI      ; EDI += 0x10000
+	;; EDI = EDI + 0x11001
+
+loop:
+	MOV         EBX, 0x1000   ;
+	MOV         EAX, EBX	  ;
+	MOV         EBX, 0x100001 ;
+	MOV         ESI, EBX	  ;
+	MUL         ESI		  ; EAX = 0x1000
+	MOV         EBX, 0x1	  ;
+	ADD         EDI, EBX	  ; EDI += 1
+	MOV         EBX, 0x1000	  ;
+	ADD         EDI, EBX	  ; EDI += 0x1000
+	SUB         EDI, EAX      ; EDI -= 0x1000
+	DEC         EDI		  ; EDI -= 1
+	SUB         ECX, 1
+	JNZ          loop
+
+	INC         EDI
+	MOV         EAX, EDI
+	MOV         ESP, EBP
+	POP         EBP
+	RET