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2012-12-02[ubsan] Add flag to enable recovery from checks when possible.Will Dietz
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169114 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Fix a test that was redefining FileCheck variables while referencing old ones.Eli Bendersky
In preparation for the FileCheck enhancement to support backreferences. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169090 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Don't emit a warning with an input/output parameter. We assume the user ↵Bill Wendling
knows what they're doing here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169059 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Don't warn if the input size is less than the register size. Also don't warn ifBill Wendling
the output size is greater than the register size. No truncation occurs with those. Reword warning to make it clearer what's the problem is. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Add a test case for the new cortex-a5 switchQuentin Colombet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168968 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix a small calling-convention bug for x86-32. PR14453.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168959 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28ABI: comments from Eli on r168820.Manman Ren
rdar://12723368 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168821 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28ABI: modify CreateCoercedLoad and CreateCoercedStore to not use load or store ofManman Ren
the original parameter or return type. Since we do not accurately represent the data fields of a union, we should not directly load or store a union type. As an exmple, if we have i8,i8, i32, i32 as one field type and i32,i32 as another field type, the first field type will be chosen to represent the union. If we load with the union's type, the 3rd byte and the 4th byte will be skipped. rdar://12723368 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168820 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Teach Lexer::getSpelling about raw string literals. Specifically, if a rawRichard Smith
string literal needs cleaning (because it contains line-splicing in the encoding prefix or in the ud-suffix), do not clean the section between the double-quotes -- that's the "raw" bit! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168776 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Add -fsanitize=integer for reporting suspicious integer behaviors.Will Dietz
Introduces new sanitizer "unsigned-integer-overflow". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168701 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27This patch addresses an incompatibility relative to the 64-bit PowerPCBill Schmidt
ELF ABI. Complex values are to be passed in registers as though the real and imaginary parts were passed as separate parameters. Prior to this patch, complex values were passed as byval aggregates. It turns out that specifying getDirect() for all complex types when classifying the argument type results in the desired behavior. The new Clang test case verifies that the correct LLVM IR is generated for caller and callee for each of the underlying types for _Complex. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168673 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-26check that always_inline attribute works with -fno-inlineSebastian Pop
Clean up the existing test to use FileCheck. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-23PR14306: Move -fbounds-checking to -fsanitize=bounds.Joey Gouly
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168510 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Enable inlining of 4 byte atomic ops on ppc32, 8 byte atomic ops on ppc64.Benjamin Kramer
Also fixes a bit/byte mismatch when checking if a target supports atomic ops of a certain size. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168260 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Make sure CodeGenTypes correctly reconverts function types. Fixes PR14355, ↵Eli Friedman
a crash in IR generation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14When evaluating variably modified types for function parameters, dig out theEli Friedman
type as written from the ParmVarDecl; it's unclear whether the standard (C99 6.9.1p10) requires this, but we're following the precedent set by gcc, and hopefully nobody will ever ask about this again. PR9559 / <rdar://problem/12621983>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167985 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Remove the cellspu port.Eric Christopher
Approved by Chris Lattner. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167983 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Revert "Use the 'count' attribute instead of the 'upper_bound' attribute."Eric Christopher
temporarily since it breaks the gdb bots. This reverts commit r167807/30305bec25cac981c6d4a3b8be004401310a82a7. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167887 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Use the 'count' attribute instead of the 'upper_bound' attribute.Bill Wendling
If we have a type 'int a[1]' and a type 'int b[0]', the generated DWARF is the same for both of them because we use the 'upper_bound' attribute. Instead use the 'count' attrbute, which gives the correct number of elements in the array. <rdar://problem/12566646> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167807 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Fix IR generation for bool on PPC (and any other target where bool is not 8 ↵Eli Friedman
bits in memory). PR11777. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167802 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12That's causing an error.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Don't test for incomplete types.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167761 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Update testcase to show that we don't emit an error for sizes <= 32-bits.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167748 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-12Check that the input size is correct for the given constraint.Bill Wendling
The 'a', 'c', and 'd' constraints on i386 mean a 32-bit register. We cannot place a 64-bit value into the 32-bit register. Error out instead of causing the compiler to spew general badness. <rdar://problem/12415959> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167717 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Add clang support of RTM from TSXMichael Liao
- New options '-mrtm'/'-mno-rtm' are added to enable/disable RTM feature - Builtin macro '__RTM__' is defined if RTM feature is enabled - RTM intrinsic header is added and introduces 3 new intrinsics, namely '_xbegin', '_xend', and '_xabort'. - 3 new builtins are added to keep compatible with gcc, namely '__builtin_ia32_xbegin', '__builtin_ia32_xend', and '__builtin_ia32_xabort'. - Test cases for pre-defined macro and new intrinsic codegen are added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167665 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-10Add a few more test cases for verifying -fno-builtin.Meador Inge
Some holes in testing where discovered while working on the LLVM library call simplifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167661 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-09[NVPTX] Add __nvvm_* intrinsics as Clang builtinsJustin Holewinski
Fixes bug 13354. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167647 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-08llvm/ConstantFolding.cpp: Make ReadDataFromGlobal() and ↵NAKAMURA Takumi
FoldReinterpretLoadFromConstPtr() Big-endian-aware. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167595 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06ARM byval: when type alignment is bigger than ABI alignment, instead ofManman Ren
disabling byval, we set realign to true. It will perform an aligned alloca, and call memcpy to copy the byval argument to the local variable. Change the size threshold back to 64 bytes. rdar://12596507 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06Classify the INT_MIN/-1 check as -fsanitize=signed-integer-overflow, not as ↵Richard Smith
-fsanitize=divide-by-zero. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167433 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05Use the individual -fsanitize=<...> arguments to control which of the UBSanRichard Smith
checks to enable. Remove frontend support for -fcatch-undefined-behavior, -faddress-sanitizer and -fthread-sanitizer now that they don't do anything. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167413 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05On PowerPC64, integer arguments and return values need to be sign- orUlrich Weigand
zero-extended to 64 bits. This information is currently provided to the back end by setting "signext" or "zeroext" attributes. However, this is done only for integer types *smaller* than i32, not for i32 itself. This causes clang to generate code violating the ABI, which results in a failure of the tramp3d-v4 test case (due to calling a system library routine without ABI-required extension). This patch implements custom versions of classifyArgumentType and classifyReturnType for PPC64_SVR4_ABIInfo, which are the same as the default versions except that they also classify "int" and "unsigned int" as types needing extending. This fixed tramp3d-v4 on PowerPC64. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167393 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-02Fix debug tag type of forward declarations of struct/class in C++.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167308 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-02clang/test/CodeGen/bitfield-promote.c: Add explicit triple for now. It has ↵NAKAMURA Takumi
been failing for big endian targets, for example, ppc. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-02clang/test/CodeGen/bitfield-promote.c: FileCheck-ize.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01Update the front end to use minsize attributeQuentin Colombet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167266 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01Remove divison-by-zero checks from -ftrapv. These checks were incompatible withRichard Smith
g++'s -ftrapv, failed to call the -ftrapv overflow handler, and are still available under -fcatch-undefined-behavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167258 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01-fcatch-undefined-behavior: Start checking loads and stores for null pointers.Richard Smith
We want the diagnostic, and if the load is optimized away, we still want to trap it. Stop checking non-default address spaces; that doesn't work in general. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31ARM AAPCS-VFP: fix tracking of allocated VFP registers.Manman Ren
According to the spec, we can backfill VFP registers that were skipped due to alignment constraints. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31[driver] Remove the -ccc-host-triple alias. This has been replaced by theChad Rosier
-target option. rdar://10692880 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167158 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30ARM AAPCS-VFP: fix handling of homogeneous aggreate.Manman Ren
If HA can only partially fit into VFP registers, we add padding to make sure HA will be on stack and later VFP CPRCs will be on stack as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167058 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30Change ForceSizeOpt attribute into MinSize attributeQuentin Colombet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167021 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30Don't crash on bad atomic operations. PR14176.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166992 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29Revert commit r166946Quentin Colombet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166957 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29Make forcesizeopt attribute available to the end userQuentin Colombet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166946 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29This patch adds alignment information for long double to the 64-bit PowerPCBill Schmidt
ELF subtarget. The existing description string is moved from PPC64TargetInfo to its DarwinTargetInfo subclass, to avoid any changes to the Darwin ABI. PPC64TargetInfo now has two possible description strings: one for FreeBSD, which requires 8-byte alignment, and a default string that requires 16-byte alignment. I've added a test for PPC64 Linux to verify the 16-byte alignment. If somebody wants to add a separate test for FreeBSD, that would be great. Note that there is a companion patch to update the alignment information in LLVM, which I am committing now as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166927 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29Handle '*' and '#' asm constraint modifiers.Ulrich Weigand
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166924 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26Fix typo.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26Add missing safety check to an optimization for do-while loops. PR14191.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166832 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26This patch is a follow-up to r166805. As suggested on-list, a check wasBill Schmidt
added to ensure no extra alignment code is added in the future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166812 91177308-0d34-0410-b5e6-96231b3b80d8
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