Implement PR1795, an instcombine hack for forming GEPs with integer pointer arithmetic.
llvm-svn: 45745
diff --git a/llvm/test/Transforms/InstCombine/add2.ll b/llvm/test/Transforms/InstCombine/add2.ll
index ff89946..de1bbf4 100644
--- a/llvm/test/Transforms/InstCombine/add2.ll
+++ b/llvm/test/Transforms/InstCombine/add2.ll
@@ -1,6 +1,10 @@
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
; RUN: grep -v OK | not grep add
+;; Target triple for gep raising case below.
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+target triple = "i686-apple-darwin8"
+
define i64 @test1(i64 %A, i32 %B) {
%tmp12 = zext i32 %B to i64
%tmp3 = shl i64 %tmp12, 32
@@ -9,3 +13,19 @@
ret i64 %tmp6
}
+; PR1795
+define void @test2(i32 %.val24) {
+EntryBlock:
+ add i32 %.val24, -12
+ inttoptr i32 %0 to i32*
+ store i32 1, i32* %1
+ add i32 %.val24, -16
+ inttoptr i32 %2 to i32*
+ getelementptr i32* %3, i32 1
+ load i32* %4
+ tail call i32 @callee( i32 %5 )
+ ret void
+}
+
+declare i32 @callee(i32)
+