diff options
Diffstat (limited to 'recipes/llvm/llvm2.7/r97745-llvmPR6480.patch')
| -rw-r--r-- | recipes/llvm/llvm2.7/r97745-llvmPR6480.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/recipes/llvm/llvm2.7/r97745-llvmPR6480.patch b/recipes/llvm/llvm2.7/r97745-llvmPR6480.patch new file mode 100644 index 0000000000..7ca5eef212 --- /dev/null +++ b/recipes/llvm/llvm2.7/r97745-llvmPR6480.patch @@ -0,0 +1,75 @@ +Index: llvm2.7/test/CodeGen/ARM/2010-03-04-stm-undef-addr.ll +=================================================================== +--- llvm2.7.org/test/CodeGen/ARM/2010-03-04-stm-undef-addr.ll (revision 0) ++++ llvm2.7/test/CodeGen/ARM/2010-03-04-stm-undef-addr.ll (revision 97745) +@@ -0,0 +1,54 @@ ++; RUN: llc < %s -march=arm ++ ++define void @"java.lang.String::getChars"([84 x i8]* %method, i32 %base_pc, [788 x i8]* %thread) { ++ %1 = sub i32 undef, 48 ; <i32> [#uses=1] ++ br i1 undef, label %stack_overflow, label %no_overflow ++ ++stack_overflow: ; preds = %0 ++ unreachable ++ ++no_overflow: ; preds = %0 ++ %frame = inttoptr i32 %1 to [17 x i32]* ; <[17 x i32]*> [#uses=4] ++ %2 = load i32* null ; <i32> [#uses=2] ++ %3 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 14 ; <i32*> [#uses=1] ++ %4 = load i32* %3 ; <i32> [#uses=2] ++ %5 = load [8 x i8]** undef ; <[8 x i8]*> [#uses=2] ++ br i1 undef, label %bci_13, label %bci_4 ++ ++bci_13: ; preds = %no_overflow ++ br i1 undef, label %bci_30, label %bci_21 ++ ++bci_30: ; preds = %bci_13 ++ %6 = icmp sle i32 %2, %4 ; <i1> [#uses=1] ++ br i1 %6, label %bci_46, label %bci_35 ++ ++bci_46: ; preds = %bci_30 ++ store [84 x i8]* %method, [84 x i8]** undef ++ br i1 false, label %no_exception, label %exception ++ ++exception: ; preds = %bci_46 ++ ret void ++ ++no_exception: ; preds = %bci_46 ++ ret void ++ ++bci_35: ; preds = %bci_30 ++ %7 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 15 ; <i32*> [#uses=1] ++ store i32 %2, i32* %7 ++ %8 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 14 ; <i32*> [#uses=1] ++ store i32 %4, i32* %8 ++ %9 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 13 ; <i32*> [#uses=1] ++ %10 = bitcast i32* %9 to [8 x i8]** ; <[8 x i8]**> [#uses=1] ++ store [8 x i8]* %5, [8 x i8]** %10 ++ call void inttoptr (i32 13839116 to void ([788 x i8]*, i32)*)([788 x i8]* %thread, i32 7) ++ ret void ++ ++bci_21: ; preds = %bci_13 ++ ret void ++ ++bci_4: ; preds = %no_overflow ++ store [8 x i8]* %5, [8 x i8]** undef ++ store i32 undef, i32* undef ++ call void inttoptr (i32 13839116 to void ([788 x i8]*, i32)*)([788 x i8]* %thread, i32 7) ++ ret void ++} +Index: llvm2.7/lib/Target/ARM/ARMLoadStoreOptimizer.cpp +=================================================================== +--- llvm2.7.org/lib/Target/ARM/ARMLoadStoreOptimizer.cpp (revision 97744) ++++ llvm2.7/lib/Target/ARM/ARMLoadStoreOptimizer.cpp (revision 97745) +@@ -761,6 +761,11 @@ + MI->getOperand(0).isUndef()) + return false; + ++ // Likewise don't mess with references to undefined addresses. ++ if (MI->getNumOperands() > 1 && MI->getOperand(1).isReg() && ++ MI->getOperand(1).isUndef()) ++ return false; ++ + int Opcode = MI->getOpcode(); + switch (Opcode) { + default: break; |