X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FOther%2Fconstant-fold-gep.ll;h=926bdbc1b464e1b311f49590de3011b6dc5b73b0;hb=8239daf7c83a65a189c352cce3191cdc3bbfe151;hp=bb93dc761c4fd8bf4c8ad8934e51ac31d1084179;hpb=4f8eea82d8967cffa85b9df6c9255717b059009e;p=oota-llvm.git

diff --git a/test/Other/constant-fold-gep.ll b/test/Other/constant-fold-gep.ll
index bb93dc761c4..926bdbc1b46 100644
--- a/test/Other/constant-fold-gep.ll
+++ b/test/Other/constant-fold-gep.ll
@@ -19,10 +19,14 @@
 
 ; PLAIN: %0 = type { i1, double }
 ; PLAIN: %1 = type { double, float, double, double }
-; PLAIN: %2 = type { i64, i64 }
+; PLAIN: %2 = type { i1, i1* }
+; PLAIN: %3 = type { i64, i64 }
+; PLAIN: %4 = type { i32, i32 }
 ; OPT: %0 = type { i1, double }
 ; OPT: %1 = type { double, float, double, double }
-; OPT: %2 = type { i64, i64 }
+; OPT: %2 = type { i1, i1* }
+; OPT: %3 = type { i64, i64 }
+; OPT: %4 = type { i32, i32 }
 
 ; The automatic constant folder in opt does not have targetdata access, so
 ; it can't fold gep arithmetic, in general. However, the constant folder run
@@ -64,18 +68,27 @@
 ; PLAIN: @d = constant i64 mul nuw (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11)
 ; PLAIN: @e = constant i64 ptrtoint (double* getelementptr (%1* null, i64 0, i32 2) to i64)
 ; PLAIN: @f = constant i64 1
+; PLAIN: @g = constant i64 ptrtoint (double* getelementptr (%0* null, i64 0, i32 1) to i64)
+; PLAIN: @h = constant i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64)
+; PLAIN: @i = constant i64 ptrtoint (i1** getelementptr (%2* null, i64 0, i32 1) to i64)
 ; OPT: @a = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310)
 ; OPT: @b = constant i64 ptrtoint (double* getelementptr (%0* null, i64 0, i32 1) to i64)
 ; OPT: @c = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2)
 ; OPT: @d = constant i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 11)
 ; OPT: @e = constant i64 ptrtoint (double* getelementptr (%1* null, i64 0, i32 2) to i64)
 ; OPT: @f = constant i64 1
+; OPT: @g = constant i64 ptrtoint (double* getelementptr (%0* null, i64 0, i32 1) to i64)
+; OPT: @h = constant i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64)
+; OPT: @i = constant i64 ptrtoint (i1** getelementptr (%2* null, i64 0, i32 1) to i64)
 ; TO: @a = constant i64 18480
 ; TO: @b = constant i64 8
 ; TO: @c = constant i64 16
 ; TO: @d = constant i64 88
 ; TO: @e = constant i64 16
 ; TO: @f = constant i64 1
+; TO: @g = constant i64 8
+; TO: @h = constant i64 8
+; TO: @i = constant i64 8
 
 @a = constant i64 mul (i64 3, i64 mul (i64 ptrtoint ({[7 x double], [7 x double]}* getelementptr ({[7 x double], [7 x double]}* null, i64 11) to i64), i64 5))
 @b = constant i64 ptrtoint ([13 x double]* getelementptr ({i1, [13 x double]}* null, i64 0, i32 1) to i64)
@@ -83,22 +96,35 @@
 @d = constant i64 ptrtoint (double* getelementptr ([13 x double]* null, i64 0, i32 11) to i64)
 @e = constant i64 ptrtoint (double* getelementptr ({double, float, double, double}* null, i64 0, i32 2) to i64)
 @f = constant i64 ptrtoint (<{ i16, i128 }>* getelementptr ({i1, <{ i16, i128 }>}* null, i64 0, i32 1) to i64)
+@g = constant i64 ptrtoint ({double, double}* getelementptr ({i1, {double, double}}* null, i64 0, i32 1) to i64)
+@h = constant i64 ptrtoint (double** getelementptr (double** null, i64 1) to i64)
+@i = constant i64 ptrtoint (double** getelementptr ({i1, double*}* null, i64 0, i32 1) to i64)
 
 ; The target-dependent folder should cast GEP indices to integer-sized pointers.
 
 ; PLAIN: @M = constant i64* getelementptr (i64* null, i32 1)
-; PLAIN: @N = constant i64* getelementptr (%2* null, i32 0, i32 1)
+; PLAIN: @N = constant i64* getelementptr (%3* null, i32 0, i32 1)
 ; PLAIN: @O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
 ; OPT: @M = constant i64* getelementptr (i64* null, i32 1)
-; OPT: @N = constant i64* getelementptr (%2* null, i32 0, i32 1)
+; OPT: @N = constant i64* getelementptr (%3* null, i32 0, i32 1)
 ; OPT: @O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
 ; TO: @M = constant i64* inttoptr (i64 8 to i64*)
 ; TO: @N = constant i64* inttoptr (i64 8 to i64*)
 ; TO: @O = constant i64* inttoptr (i64 8 to i64*)
 
-@M = constant i64* getelementptr (i64 *null, i32 1)
-@N = constant i64* getelementptr ({ i64, i64 } *null, i32 0, i32 1)
-@O = constant i64* getelementptr ([2 x i64] *null, i32 0, i32 1)
+@M = constant i64* getelementptr (i64* null, i32 1)
+@N = constant i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1)
+@O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
+
+; Fold GEP of a GEP. Theoretically some of these cases could be folded
+; without using targetdata, however that's not implemented yet.
+
+; PLAIN: @Z = global i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1)
+; OPT: @Z = global i32* getelementptr (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1)
+; TO: @Z = global i32* getelementptr inbounds ([3 x %0]* @ext, i64 0, i64 1, i32 1)
+
+@ext = external global [3 x { i32, i32 }]
+@Z = global i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1)
 
 ; Duplicate all of the above as function return values rather than
 ; global initializers.
@@ -229,6 +255,18 @@ define i1* @hoo1() nounwind {
 ; PLAIN:   %t = bitcast i64 1 to i64
 ; PLAIN:   ret i64 %t
 ; PLAIN: }
+; PLAIN: define i64 @fg() nounwind {
+; PLAIN:   %t = bitcast i64 ptrtoint (double* getelementptr (%0* null, i64 0, i32 1) to i64) to i64
+; PLAIN:   ret i64 %t
+; PLAIN: }
+; PLAIN: define i64 @fh() nounwind {
+; PLAIN:   %t = bitcast i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64) to i64
+; PLAIN:   ret i64 %t
+; PLAIN: }
+; PLAIN: define i64 @fi() nounwind {
+; PLAIN:   %t = bitcast i64 ptrtoint (i1** getelementptr (%2* null, i64 0, i32 1) to i64) to i64
+; PLAIN:   ret i64 %t
+; PLAIN: }
 ; OPT: define i64 @fa() nounwind {
 ; OPT:   ret i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310)
 ; OPT: }
@@ -247,6 +285,15 @@ define i1* @hoo1() nounwind {
 ; OPT: define i64 @ff() nounwind {
 ; OPT:   ret i64 1
 ; OPT: }
+; OPT: define i64 @fg() nounwind {
+; OPT:   ret i64 ptrtoint (double* getelementptr (%0* null, i64 0, i32 1) to i64)
+; OPT: }
+; OPT: define i64 @fh() nounwind {
+; OPT:   ret i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64)
+; OPT: }
+; OPT: define i64 @fi() nounwind {
+; OPT:   ret i64 ptrtoint (i1** getelementptr (%2* null, i64 0, i32 1) to i64)
+; OPT: }
 ; TO: define i64 @fa() nounwind {
 ; TO:   ret i64 18480
 ; TO: }
@@ -265,6 +312,15 @@ define i1* @hoo1() nounwind {
 ; TO: define i64 @ff() nounwind {
 ; TO:   ret i64 1
 ; TO: }
+; TO: define i64 @fg() nounwind {
+; TO:   ret i64 8
+; TO: }
+; TO: define i64 @fh() nounwind {
+; TO:   ret i64 8
+; TO: }
+; TO: define i64 @fi() nounwind {
+; TO:   ret i64 8
+; TO: }
 ; SCEV: Classifying expressions for: @fa
 ; SCEV:   %t = bitcast i64 mul (i64 ptrtoint (double* getelementptr (double* null, i32 1) to i64), i64 2310) to i64 
 ; SCEV:   -->  (2310 * sizeof(double))
@@ -283,6 +339,15 @@ define i1* @hoo1() nounwind {
 ; SCEV: Classifying expressions for: @ff
 ; SCEV:   %t = bitcast i64 1 to i64 
 ; SCEV:   -->  1
+; SCEV: Classifying expressions for: @fg
+; SCEV:   %t = bitcast i64 ptrtoint (double* getelementptr (%0* null, i64 0, i32 1) to i64) to i64
+; SCEV:   -->  alignof(double)
+; SCEV: Classifying expressions for: @fh
+; SCEV:   %t = bitcast i64 ptrtoint (i1** getelementptr (i1** null, i32 1) to i64) to i64
+; SCEV:   -->  sizeof(i1*)
+; SCEV: Classifying expressions for: @fi
+; SCEV:   %t = bitcast i64 ptrtoint (i1** getelementptr (%2* null, i64 0, i32 1) to i64) to i64
+; SCEV:   -->  alignof(i1*)
 
 define i64 @fa() nounwind {
   %t = bitcast i64 mul (i64 3, i64 mul (i64 ptrtoint ({[7 x double], [7 x double]}* getelementptr ({[7 x double], [7 x double]}* null, i64 11) to i64), i64 5)) to i64
@@ -308,13 +373,25 @@ define i64 @ff() nounwind {
   %t = bitcast i64 ptrtoint (<{ i16, i128 }>* getelementptr ({i1, <{ i16, i128 }>}* null, i64 0, i32 1) to i64) to i64
   ret i64 %t
 }
+define i64 @fg() nounwind {
+  %t = bitcast i64 ptrtoint ({double, double}* getelementptr ({i1, {double, double}}* null, i64 0, i32 1) to i64) to i64
+  ret i64 %t
+}
+define i64 @fh() nounwind {
+  %t = bitcast i64 ptrtoint (double** getelementptr (double** null, i32 1) to i64) to i64
+  ret i64 %t
+}
+define i64 @fi() nounwind {
+  %t = bitcast i64 ptrtoint (double** getelementptr ({i1, double*}* null, i64 0, i32 1) to i64) to i64
+  ret i64 %t
+}
 
 ; PLAIN: define i64* @fM() nounwind {
 ; PLAIN:   %t = bitcast i64* getelementptr (i64* null, i32 1) to i64*
 ; PLAIN:   ret i64* %t
 ; PLAIN: }
 ; PLAIN: define i64* @fN() nounwind {
-; PLAIN:   %t = bitcast i64* getelementptr (%2* null, i32 0, i32 1) to i64*
+; PLAIN:   %t = bitcast i64* getelementptr (%3* null, i32 0, i32 1) to i64*
 ; PLAIN:   ret i64* %t
 ; PLAIN: }
 ; PLAIN: define i64* @fO() nounwind {
@@ -325,7 +402,7 @@ define i64 @ff() nounwind {
 ; OPT:   ret i64* getelementptr (i64* null, i32 1)
 ; OPT: }
 ; OPT: define i64* @fN() nounwind {
-; OPT:   ret i64* getelementptr (%2* null, i32 0, i32 1)
+; OPT:   ret i64* getelementptr (%3* null, i32 0, i32 1)
 ; OPT: }
 ; OPT: define i64* @fO() nounwind {
 ; OPT:   ret i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
@@ -343,21 +420,40 @@ define i64 @ff() nounwind {
 ; SCEV:   %t = bitcast i64* getelementptr (i64* null, i32 1) to i64* 
 ; SCEV:   -->  sizeof(i64)
 ; SCEV: Classifying expressions for: @fN
-; SCEV:   %t = bitcast i64* getelementptr (%2* null, i32 0, i32 1) to i64* 
+; SCEV:   %t = bitcast i64* getelementptr (%3* null, i32 0, i32 1) to i64* 
 ; SCEV:   -->  sizeof(i64)
 ; SCEV: Classifying expressions for: @fO
 ; SCEV:   %t = bitcast i64* getelementptr ([2 x i64]* null, i32 0, i32 1) to i64* 
 ; SCEV:   -->  sizeof(i64)
 
 define i64* @fM() nounwind {
-  %t = bitcast i64* getelementptr (i64 *null, i32 1) to i64*
+  %t = bitcast i64* getelementptr (i64* null, i32 1) to i64*
   ret i64* %t
 }
 define i64* @fN() nounwind {
-  %t = bitcast i64* getelementptr ({ i64, i64 } *null, i32 0, i32 1) to i64*
+  %t = bitcast i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1) to i64*
   ret i64* %t
 }
 define i64* @fO() nounwind {
-  %t = bitcast i64* getelementptr ([2 x i64] *null, i32 0, i32 1) to i64*
+  %t = bitcast i64* getelementptr ([2 x i64]* null, i32 0, i32 1) to i64*
   ret i64* %t
 }
+
+; PLAIN: define i32* @fZ() nounwind {
+; PLAIN:   %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
+; PLAIN:   ret i32* %t
+; PLAIN: }
+; OPT: define i32* @fZ() nounwind {
+; OPT:   ret i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1)
+; OPT: }
+; TO: define i32* @fZ() nounwind {
+; TO:   ret i32* getelementptr inbounds ([3 x %0]* @ext, i64 0, i64 1, i32 1)
+; TO: }
+; SCEV: Classifying expressions for: @fZ
+; SCEV:   %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
+; SCEV:   -->  ((3 * sizeof(i32)) + @ext)
+
+define i32* @fZ() nounwind {
+  %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
+  ret i32* %t
+}