It's not necessary to do rounding for alloca operations when the requested

alignment is equal to the stack alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 182 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/select.ll b/test/Transforms/InstCombine/select.ll
new file mode 100644
index 0000000..ccc63c2
--- /dev/null
+++ b/test/Transforms/InstCombine/select.ll
@@ -0,0 +1,182 @@
+; This test makes sure that these instructions are properly eliminated.
+
+; RUN: llvm-upgrade < %s | llvm-as | opt -instcombine | llvm-dis | \
+; RUN:    not grep select
+; END.
+
+implementation
+
+int %test1(int %A, int %B) {
+	%C = select bool false, int %A, int %B
+	ret int %C
+}
+
+int %test2(int %A, int %B) {
+	%C = select bool true, int %A, int %B
+	ret int %C
+}
+
+int %test3(bool %C, int %I) {
+	%V = select bool %C, int %I, int %I         ; V = I
+	ret int %V
+}
+
+bool %test4(bool %C) {
+	%V = select bool %C, bool true, bool false  ; V = C
+	ret bool %V
+}
+
+bool %test5(bool %C) {
+	%V = select bool %C, bool false, bool true  ; V = !C
+	ret bool %V
+}
+
+int %test6(bool %C) {
+	%V = select bool %C, int 1, int 0         ; V = cast C to int
+	ret int %V
+}
+
+bool %test7(bool %C, bool %X) {
+        %R = select bool %C, bool true, bool %X    ; R = or C, X
+        ret bool %R
+}
+
+bool %test8(bool %C, bool %X) {
+        %R = select bool %C, bool %X, bool false   ; R = and C, X
+        ret bool %R
+}
+
+bool %test9(bool %C, bool %X) {
+        %R = select bool %C, bool false, bool %X    ; R = and !C, X
+        ret bool %R
+}
+
+bool %test10(bool %C, bool %X) {
+        %R = select bool %C, bool %X, bool true   ; R = or !C, X
+        ret bool %R
+}
+
+int %test11(int %a) {
+        %C = seteq int %a, 0
+        %R = select bool %C, int 0, int 1
+        ret int %R
+}
+
+int %test12(bool %cond, int %a) {
+	%b = or int %a, 1
+	%c = select bool %cond, int %b, int %a
+	ret int %c
+}
+
+int %test12a(bool %cond, int %a) {
+	%b = shr int %a, ubyte 1
+	%c = select bool %cond, int %b, int %a
+	ret int %c
+}
+
+int %test12b(bool %cond, int %a) {
+	%b = shr int %a, ubyte 1
+	%c = select bool %cond, int %a, int %b
+	ret int %c
+}
+
+int %test13(int %a, int %b) {
+	%C = seteq int %a, %b
+	%V = select bool %C, int %a, int %b
+	ret int %V
+}
+
+int %test13a(int %a, int %b) {
+	%C = setne int %a, %b
+	%V = select bool %C, int %a, int %b
+	ret int %V
+}
+
+int %test13b(int %a, int %b) {
+	%C = seteq int %a, %b
+	%V = select bool %C, int %b, int %a
+	ret int %V
+}
+
+bool %test14a(bool %C, int %X) {
+	%V = select bool %C, int %X, int 0
+	%R = setlt int %V, 1                  ; (X < 1) | !C
+	ret bool %R
+}
+
+bool %test14b(bool %C, int %X) {
+	%V = select bool %C, int 0, int %X
+	%R = setlt int %V, 1                  ; (X < 1) | C
+	ret bool %R
+}
+
+int %test15a(int %X) {       ;; Code sequence for (X & 16) ? 16 : 0
+        %t1 = and int %X, 16
+        %t2 = seteq int %t1, 0
+        %t3 = select bool %t2, int 0, int 16 ;; X & 16
+        ret int %t3
+}
+
+int %test15b(int %X) {       ;; Code sequence for (X & 32) ? 0 : 24
+        %t1 = and int %X, 32
+        %t2 = seteq int %t1, 0
+        %t3 = select bool %t2, int 32, int 0 ;; ~X & 32
+        ret int %t3
+}
+
+int %test15c(int %X) {       ;; Alternate code sequence for (X & 16) ? 16 : 0
+        %t1 = and int %X, 16
+        %t2 = seteq int %t1, 16
+        %t3 = select bool %t2, int 16, int 0 ;; X & 16
+        ret int %t3
+}
+
+int %test15d(int %X) {       ;; Alternate code sequence for (X & 16) ? 16 : 0
+        %t1 = and int %X, 16
+        %t2 = setne int %t1, 0
+        %t3 = select bool %t2, int 16, int 0 ;; X & 16
+        ret int %t3
+}
+
+int %test16(bool %C, int* %P) {
+	%P2 = select bool %C, int* %P, int* null
+	%V = load int* %P2
+	ret int %V
+}
+
+bool %test17(int* %X, bool %C) {
+	%R = select bool %C, int* %X, int* null
+	%RV = seteq int* %R, null
+	ret bool %RV
+}
+
+int %test18(int %X, int %Y, bool %C) {
+	%R = select bool %C, int %X, int 0
+	%V = div int %Y, %R   ; div Y,X
+	ret int %V
+}
+
+int %test19(uint %x) {
+        %tmp = setgt uint %x, 2147483647
+        %retval = select bool %tmp, int -1, int 0
+        ret int %retval
+}
+
+int %test20(int %x) {
+        %tmp = setlt int %x, 0
+        %retval = select bool %tmp, int -1, int 0
+        ret int %retval
+}
+
+long %test21(int %x) {
+        %tmp = setlt int %x, 0
+        %retval = select bool %tmp, long -1, long 0
+        ret long %retval
+}
+
+short %test22(int %x) {
+        %tmp = setlt int %x, 0
+        %retval = select bool %tmp, short -1, short 0
+        ret short %retval
+}
+