6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-03 00:33:09 +00:00
Code Issues Projects Releases Wiki Activity

trivial fix for PR20314

Browse Source 
Make sure that the AddrInst is an Instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213197 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjay Patel 2014-07-16 21:08:10 +00:00
parent 8758b729f5
commit 889a136c52
2 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
lib/CodeGen/CodeGenPrepare.cpp
View File

@ -2130,8 +2130,11 @@ bool AddressingModeMatcher::MatchOperationAddr(User *AddrInst, unsigned Opcode,
return true;
}
case Instruction::SExt: {
// Make sure this isn't a ConstantExpr (PR20314).
Instruction *SExt = dyn_cast<Instruction>(AddrInst);
if (!SExt) return false;
// Try to move this sext out of the way of the addressing mode.
Instruction *SExt = cast<Instruction>(AddrInst);
// Ask for a method for doing so.
TypePromotionHelper::Action TPH = TypePromotionHelper::getAction(
SExt, InsertedTruncs, TLI, PromotedInsts);

14
test/CodeGen/X86/pr20314.ll Normal file
View File

@ -0,0 +1,14 @@
; RUN: llc < %s -mtriple=x86_64-pc-linux
; No check as PR20314 is a crashing bug.
@c = common global [2 x i32] zeroinitializer, align 4
@a = common global i32 0, align 4
@b = internal unnamed_addr constant [2 x i8] c"\01\00", align 1
define i32 @main() {
entry:
%foo = load i8* getelementptr ([2 x i8]* @b, i64 0, i64 sext (i8 or (i8 zext (i1 icmp eq (i32* getelementptr inbounds ([2 x i32]* @c, i64 0, i64 1), i32* @a) to i8), i8 1) to i64)), align 1
ret i32 0
}