; The %A getelementptr instruction should be eliminated here
-; RUN: if as < %s | opt -instcombine -die | dis | grep getelementptr | grep '%A'
-; RUN: then exit 1
-; RUN: else exit 0
-; RUN: fi
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
+; RUN: grep -v %B | not grep getelementptr
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep foo1
+; END.
-implementation
+@Global = constant [10 x i8] c"helloworld" ; <[10 x i8]*> [#uses=1]
-int *"foo1"(int * %I) { ; Test noop elimination
- %A = getelementptr int* %I, uint 0
- ret int * %A
+; Test noop elimination
+define i32* @foo1(i32* %I) {
+ %A = getelementptr i32* %I, i64 0 ; <i32*> [#uses=1]
+ ret i32* %A
}
-int* %foo2(int* %I) { ; Test noop elimination
- %A = getelementptr int* %I
- ret int* %A
+; Test noop elimination
+define i32* @foo2(i32* %I) {
+ %A = getelementptr i32* %I ; <i32*> [#uses=1]
+ ret i32* %A
}
-int* %foo3(int * %I) { ; Test that two array indexing geps fold
- %A = getelementptr int* %I, uint 17
- %B = getelementptr int* %A, uint 4
- ret int* %B
+
+; Test that two array indexing geps fold
+define i32* @foo3(i32* %I) {
+ %A = getelementptr i32* %I, i64 17 ; <i32*> [#uses=1]
+ %B = getelementptr i32* %A, i64 4 ; <i32*> [#uses=1]
+ ret i32* %B
+}
+
+; Test that two getelementptr insts fold
+define i32* @foo4({ i32 }* %I) {
+ %A = getelementptr { i32 }* %I, i64 1 ; <{ i32 }*> [#uses=1]
+ %B = getelementptr { i32 }* %A, i64 0, i32 0 ; <i32*> [#uses=1]
+ ret i32* %B
+}
+
+define void @foo5(i8 %B) {
+ ; This should be turned into a constexpr instead of being an instruction
+ %A = getelementptr [10 x i8]* @Global, i64 0, i64 4 ; <i8*> [#uses=1]
+ store i8 %B, i8* %A
+ ret void
+}
+
+define i32* @foo6() {
+ %M = malloc [4 x i32] ; <[4 x i32]*> [#uses=1]
+ %A = getelementptr [4 x i32]* %M, i64 0, i64 0 ; <i32*> [#uses=1]
+ %B = getelementptr i32* %A, i64 2 ; <i32*> [#uses=1]
+ ret i32* %B
+}
+
+define i32* @foo7(i32* %I, i64 %C, i64 %D) {
+ %A = getelementptr i32* %I, i64 %C ; <i32*> [#uses=1]
+ %B = getelementptr i32* %A, i64 %D ; <i32*> [#uses=1]
+ ret i32* %B
+}
+
+define i8* @foo8([10 x i32]* %X) {
+ ;; Fold into the cast.
+ %A = getelementptr [10 x i32]* %X, i64 0, i64 0 ; <i32*> [#uses=1]
+ %B = bitcast i32* %A to i8* ; <i8*> [#uses=1]
+ ret i8* %B
+}
+
+define i32 @test9() {
+ %A = getelementptr { i32, double }* null, i32 0, i32 1 ; <double*> [#uses=1]
+ %B = ptrtoint double* %A to i32 ; <i32> [#uses=1]
+ ret i32 %B
+}
+
+define i1 @test10({ i32, i32 }* %x, { i32, i32 }* %y) {
+ %tmp.1 = getelementptr { i32, i32 }* %x, i32 0, i32 1 ; <i32*> [#uses=1]
+ %tmp.3 = getelementptr { i32, i32 }* %y, i32 0, i32 1 ; <i32*> [#uses=1]
+ ;; seteq x, y
+ %tmp.4 = icmp eq i32* %tmp.1, %tmp.3 ; <i1> [#uses=1]
+ ret i1 %tmp.4
}
-int* %foo4({int} *%I) { ; Test that two getelementptr insts fold
- %A = getelementptr {int}* %I, uint 1
- %B = getelementptr {int}* %A, uint 0, ubyte 0
- ret int* %B
+define i1 @test11({ i32, i32 }* %X) {
+ %P = getelementptr { i32, i32 }* %X, i32 0, i32 0 ; <i32*> [#uses=1]
+ %Q = icmp eq i32* %P, null ; <i1> [#uses=1]
+ ret i1 %Q
}