[llvm-commits] [poolalloc] r155777 - /poolalloc/trunk/test/dsa/regression/scc3b.ll

[Will Dietz]

Author: wdietz2
Date: Sat Apr 28 17:12:28 2012
New Revision: 155777

URL: http://llvm.org/viewvc/llvm-project?rev=155777&view=rev
Log:
Add reduced testcase from sqlite3 that causes crash (from PR8779)

Crash is due to infinite recursion.

Added:
    poolalloc/trunk/test/dsa/regression/scc3b.ll

Added: poolalloc/trunk/test/dsa/regression/scc3b.ll
URL: http://llvm.org/viewvc/llvm-project/poolalloc/trunk/test/dsa/regression/scc3b.ll?rev=155777&view=auto
==============================================================================
--- poolalloc/trunk/test/dsa/regression/scc3b.ll (added)
+++ poolalloc/trunk/test/dsa/regression/scc3b.ll Sat Apr 28 17:12:28 2012
@@ -0,0 +1,98 @@
+; ModuleID = 'scc3b.o'
+;RUN: dsaopt %s -dsa-bu -disable-output
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-unknown-linux-gnu"
+
+define internal i32* @func(i32* %arg) nounwind {
+entry:
+  %arg_addr = alloca i32*                         ; <i32**> [#uses=2]
+  %retval = alloca i32*                           ; <i32**> [#uses=2]
+  %0 = alloca i32*                                ; <i32**> [#uses=2]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  store i32* %arg, i32** %arg_addr
+  %1 = call i32* @A() nounwind                    ; <i32*> [#uses=0]
+  %2 = load i32** %arg_addr, align 8              ; <i32*> [#uses=1]
+  %3 = call i32* @C(i32* (i32*)* null, i32* %2) nounwind ; <i32*> [#uses=1]
+  store i32* %3, i32** %0, align 8
+  %4 = load i32** %0, align 8                     ; <i32*> [#uses=1]
+  store i32* %4, i32** %retval, align 8
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval1 = load i32** %retval                   ; <i32*> [#uses=1]
+  ret i32* %retval1
+}
+
+define internal i32* @C(i32* (i32*)* %f, i32* %arg) nounwind {
+entry:
+  %f_addr = alloca i32* (i32*)*                   ; <i32* (i32*)**> [#uses=2]
+  %arg_addr = alloca i32*                         ; <i32**> [#uses=2]
+  %retval = alloca i32*                           ; <i32**> [#uses=1]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  store i32* (i32*)* %f, i32* (i32*)** %f_addr
+  store i32* %arg, i32** %arg_addr
+  %0 = call i32* @A() nounwind                    ; <i32*> [#uses=0]
+  %1 = call i32* @B() nounwind                    ; <i32*> [#uses=1]
+  %2 = call i32* @func(i32* %1) nounwind          ; <i32*> [#uses=0]
+  %3 = load i32* (i32*)** %f_addr, align 8        ; <i32* (i32*)*> [#uses=1]
+  %4 = load i32** %arg_addr, align 8              ; <i32*> [#uses=1]
+  %5 = call i32* %3(i32* %4) nounwind             ; <i32*> [#uses=0]
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval1 = load i32** %retval                   ; <i32*> [#uses=1]
+  ret i32* %retval1
+}
+
+define internal i32* @B() nounwind {
+entry:
+  %retval = alloca i32*                           ; <i32**> [#uses=2]
+  %0 = alloca i32*                                ; <i32**> [#uses=2]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  %1 = call i32* @A() nounwind                    ; <i32*> [#uses=1]
+  %2 = call i32* @func(i32* %1) nounwind          ; <i32*> [#uses=0]
+  %3 = call i32* @A() nounwind                    ; <i32*> [#uses=1]
+  %4 = call i32* @C(i32* (i32*)* @func, i32* %3) nounwind ; <i32*> [#uses=1]
+  store i32* %4, i32** %0, align 8
+  %5 = load i32** %0, align 8                     ; <i32*> [#uses=1]
+  store i32* %5, i32** %retval, align 8
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval1 = load i32** %retval                   ; <i32*> [#uses=1]
+  ret i32* %retval1
+}
+
+define internal i32* @A() nounwind {
+entry:
+  %retval = alloca i32*                           ; <i32**> [#uses=2]
+  %0 = alloca i32*                                ; <i32**> [#uses=2]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  %1 = call i32* @B() nounwind                    ; <i32*> [#uses=1]
+  %2 = call i32* @func(i32* %1) nounwind          ; <i32*> [#uses=1]
+  %3 = call i32* @C(i32* (i32*)* null, i32* %2) nounwind ; <i32*> [#uses=1]
+  store i32* %3, i32** %0, align 8
+  %4 = load i32** %0, align 8                     ; <i32*> [#uses=1]
+  store i32* %4, i32** %retval, align 8
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval1 = load i32** %retval                   ; <i32*> [#uses=1]
+  ret i32* %retval1
+}
+
+define internal i32* @D() nounwind {
+entry:
+  %retval = alloca i32*                           ; <i32**> [#uses=2]
+  %0 = alloca i32*                                ; <i32**> [#uses=2]
+  %"alloca point" = bitcast i32 0 to i32          ; <i32> [#uses=0]
+  %1 = call i32* @A() nounwind                    ; <i32*> [#uses=1]
+  store i32* %1, i32** %0, align 8
+  %2 = load i32** %0, align 8                     ; <i32*> [#uses=1]
+  store i32* %2, i32** %retval, align 8
+  br label %return
+
+return:                                           ; preds = %entry
+  %retval1 = load i32** %retval                   ; <i32*> [#uses=1]
+  ret i32* %retval1
+}