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aarch64 backend OOM on -O0 when compiling llvm.fptosi.sat.v3i32.v3f32 #94694

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programmerjake opened this issue Jun 6, 2024 · 5 comments
Closed

aarch64 backend OOM on -O0 when compiling llvm.fptosi.sat.v3i32.v3f32 #94694

programmerjake opened this issue Jun 6, 2024 · 5 comments
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@aemerson
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backend:AArch64 llvm:globalisel

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@programmerjake
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https://llvm.godbolt.org/z/1Ehsh97nP

target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-macosx11.0.0"

define internal void @f(ptr sret([12 x i8]) align 4 %_0, ptr align 4 %self) unnamed_addr {
start:
  %0 = load <3 x float>, ptr %self, align 4
  %1 = call <3 x i32> @llvm.fptosi.sat.v3i32.v3f32(<3 x float> %0)
  store <3 x i32> %1, ptr %_0, align 4
  ret void
}

@calebzulawski
originally encountered in Rust's project-portable-simd rust-lang/portable-simd#422 (comment)
@programmerjake
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I ran it under valgrind and when i gave up it had used >4GB of ram which is absurd for a function of this size

@llvmbot
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llvmbot commented Jun 6, 2024

@llvm/issue-subscribers-backend-aarch64

Author: Jacob Lifshay (programmerjake)

https://llvm.godbolt.org/z/1Ehsh97nP ```llvm target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" target triple = "arm64-apple-macosx11.0.0"

define internal void @f(ptr sret([12 x i8]) align 4 %_0, ptr align 4 %self) unnamed_addr {
start:
%0 = load <3 x float>, ptr %self, align 4
%1 = call <3 x i32> @llvm.fptosi.sat.v3i32.v3f32(<3 x float> %0)
store <3 x i32> %1, ptr %_0, align 4
ret void
}


@<!-- -->calebzulawski 
originally encountered in Rust's project-portable-simd https://github.com/rust-lang/portable-simd/pull/422#issuecomment-2153487367
</details>

@programmerjake
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valgrind massif heap tree shortly before I killed it:

#-----------
snapshot=81
#-----------
time=168329064412
mem_heap_B=5891513805
mem_heap_extra_B=85859
mem_stacks_B=0
heap_tree=peak
n4: 5891513805 (heap allocation functions) malloc/new/new[], --alloc-fns, etc.
 n2: 4042308640 0x2BE6999: llvm::SmallVectorBase<unsigned int>::mallocForGrow(void*, unsigned long, unsigned long, unsigned long&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
  n2: 4042260400 0x1E3286D: llvm::SmallVectorTemplateBase<std::pair<unsigned int, llvm::SmallVector<llvm::Register, 4u> >, false>::grow(unsigned long) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
   n1: 4042260400 0x1E335FC: llvm::MachineRegisterInfo::createIncompleteVirtualRegister(llvm::StringRef) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n1: 4042260400 0x1E33721: llvm::MachineRegisterInfo::createGenericVirtualRegister(llvm::LLT, llvm::StringRef) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n2: 4042260400 0x30F66A1: llvm::MachineIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n1: 4042260400 0x301B572: llvm::CSEMIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
       n1: 4042260400 0x30FB930: llvm::MachineIRBuilder::buildUnmerge(llvm::LLT, llvm::SrcOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
        n1: 4042260400 0x30FBB01: llvm::MachineIRBuilder::buildDeleteTrailingVectorElements(llvm::DstOp const&, llvm::SrcOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
         n1: 4042260400 0x30ADB57: llvm::LegalizerHelper::moreElementsVector(llvm::MachineInstr&, unsigned int, llvm::LLT) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
          n1: 4042260400 0x309B55A: llvm::Legalizer::legalizeMachineFunction(llvm::MachineFunction&, llvm::LegalizerInfo const&, llvm::ArrayRef<llvm::GISelChangeObserver*>, llvm::LostDebugLocObserver&, llvm::MachineIRBuilder&, llvm::GISelKnownBits*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
           n1: 4042260400 0x309D98C: llvm::Legalizer::runOnMachineFunction(llvm::MachineFunction&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
            n1: 4042260400 0x1D9149F: llvm::MachineFunctionPass::runOnFunction(llvm::Function&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
             n1: 4042260400 0x22CC029: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
              n1: 4042260400 0x22CC1B8: llvm::FPPassManager::runOnModule(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
               n1: 4042260400 0x22CD68F: llvm::legacy::PassManagerImpl::run(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
                n1: 4042260400 0x4BDEFA: compileModule(char**, llvm::LLVMContext&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
                 n0: 4042260400 0x3DF075: main (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n0: 0 in 1 place, below massif's threshold (1.00%)
   n0: 0 in 1 place, below massif's threshold (1.00%)
  n0: 48240 in 5 places, all below massif's threshold (1.00%)
 n5: 1757950016 0x2BE6822: llvm::SmallVectorBase<unsigned int>::grow_pod(void*, unsigned long, unsigned long) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
  n1: 1077936112 0x1E33638: llvm::MachineRegisterInfo::createIncompleteVirtualRegister(llvm::StringRef) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
   n1: 1077936112 0x1E33721: llvm::MachineRegisterInfo::createGenericVirtualRegister(llvm::LLT, llvm::StringRef) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n2: 1077936112 0x30F66A1: llvm::MachineIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n1: 1077936112 0x301B572: llvm::CSEMIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n1: 1077936112 0x30FB930: llvm::MachineIRBuilder::buildUnmerge(llvm::LLT, llvm::SrcOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
       n1: 1077936112 0x30FBB01: llvm::MachineIRBuilder::buildDeleteTrailingVectorElements(llvm::DstOp const&, llvm::SrcOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
        n1: 1077936112 0x30ADB57: llvm::LegalizerHelper::moreElementsVector(llvm::MachineInstr&, unsigned int, llvm::LLT) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
         n1: 1077936112 0x309B55A: llvm::Legalizer::legalizeMachineFunction(llvm::MachineFunction&, llvm::LegalizerInfo const&, llvm::ArrayRef<llvm::GISelChangeObserver*>, llvm::LostDebugLocObserver&, llvm::MachineIRBuilder&, llvm::GISelKnownBits*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
          n1: 1077936112 0x309D98C: llvm::Legalizer::runOnMachineFunction(llvm::MachineFunction&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
           n1: 1077936112 0x1D9149F: llvm::MachineFunctionPass::runOnFunction(llvm::Function&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
            n1: 1077936112 0x22CC029: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
             n1: 1077936112 0x22CC1B8: llvm::FPPassManager::runOnModule(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
              n1: 1077936112 0x22CD68F: llvm::legacy::PassManagerImpl::run(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
               n1: 1077936112 0x4BDEFA: compileModule(char**, llvm::LLVMContext&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
                n0: 1077936112 0x3DF075: main (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n0: 0 in 1 place, below massif's threshold (1.00%)
  n1: 536870904 0x1E304A2: llvm::MachineRegisterInfo::setType(llvm::Register, llvm::LLT) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
   n2: 536870904 0x1E33746: llvm::MachineRegisterInfo::createGenericVirtualRegister(llvm::LLT, llvm::StringRef) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n1: 536870904 0x30F66A1: llvm::MachineIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n1: 536870904 0x301B572: llvm::CSEMIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n1: 536870904 0x30FB930: llvm::MachineIRBuilder::buildUnmerge(llvm::LLT, llvm::SrcOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
       n1: 536870904 0x30FBB01: llvm::MachineIRBuilder::buildDeleteTrailingVectorElements(llvm::DstOp const&, llvm::SrcOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
        n1: 536870904 0x30ADB57: llvm::LegalizerHelper::moreElementsVector(llvm::MachineInstr&, unsigned int, llvm::LLT) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
         n1: 536870904 0x309B55A: llvm::Legalizer::legalizeMachineFunction(llvm::MachineFunction&, llvm::LegalizerInfo const&, llvm::ArrayRef<llvm::GISelChangeObserver*>, llvm::LostDebugLocObserver&, llvm::MachineIRBuilder&, llvm::GISelKnownBits*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
          n1: 536870904 0x309D98C: llvm::Legalizer::runOnMachineFunction(llvm::MachineFunction&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
           n1: 536870904 0x1D9149F: llvm::MachineFunctionPass::runOnFunction(llvm::Function&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
            n1: 536870904 0x22CC029: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
             n1: 536870904 0x22CC1B8: llvm::FPPassManager::runOnModule(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
              n1: 536870904 0x22CD68F: llvm::legacy::PassManagerImpl::run(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
               n1: 536870904 0x4BDEFA: compileModule(char**, llvm::LLVMContext&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
                n0: 536870904 0x3DF075: main (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n0: 0 in 3 places, all below massif's threshold (1.00%)
  n1: 75497464 0x3011C47: llvm::GISelCSEInfo::recordNewInstruction(llvm::MachineInstr*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
   n1: 75497464 0x3029E0F: llvm::GISelObserverWrapper::MF_HandleInsertion(llvm::MachineInstr&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n1: 75497464 0x30F647A: llvm::MachineIRBuilder::insertInstr(llvm::MachineInstrBuilder) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n1: 75497464 0x30F6566: llvm::MachineIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n1: 75497464 0x301BE7A: llvm::CSEMIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
       n1: 75497464 0x30FAB71: llvm::MachineIRBuilder::buildUndef(llvm::DstOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
        n1: 75497464 0x30AD9E8: llvm::LegalizerHelper::moreElementsVector(llvm::MachineInstr&, unsigned int, llvm::LLT) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
         n1: 75497464 0x309B55A: llvm::Legalizer::legalizeMachineFunction(llvm::MachineFunction&, llvm::LegalizerInfo const&, llvm::ArrayRef<llvm::GISelChangeObserver*>, llvm::LostDebugLocObserver&, llvm::MachineIRBuilder&, llvm::GISelKnownBits*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
          n1: 75497464 0x309D98C: llvm::Legalizer::runOnMachineFunction(llvm::MachineFunction&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
           n1: 75497464 0x1D9149F: llvm::MachineFunctionPass::runOnFunction(llvm::Function&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
            n1: 75497464 0x22CC029: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
             n1: 75497464 0x22CC1B8: llvm::FPPassManager::runOnModule(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
              n1: 75497464 0x22CD68F: llvm::legacy::PassManagerImpl::run(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
               n1: 75497464 0x4BDEFA: compileModule(char**, llvm::LLVMContext&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
                n0: 75497464 0x3DF075: main (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
  n1: 67633144 0x309D3FB: llvm::Legalizer::legalizeMachineFunction(llvm::MachineFunction&, llvm::LegalizerInfo const&, llvm::ArrayRef<llvm::GISelChangeObserver*>, llvm::LostDebugLocObserver&, llvm::MachineIRBuilder&, llvm::GISelKnownBits*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
   n1: 67633144 0x309D98C: llvm::Legalizer::runOnMachineFunction(llvm::MachineFunction&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n1: 67633144 0x1D9149F: llvm::MachineFunctionPass::runOnFunction(llvm::Function&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n1: 67633144 0x22CC029: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n1: 67633144 0x22CC1B8: llvm::FPPassManager::runOnModule(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
       n1: 67633144 0x22CD68F: llvm::legacy::PassManagerImpl::run(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
        n1: 67633144 0x4BDEFA: compileModule(char**, llvm::LLVMContext&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
         n0: 67633144 0x3DF075: main (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
  n0: 12392 in 16 places, all below massif's threshold (1.00%)
 n2: 90463680 0x61DCBE5: operator new(unsigned long, std::align_val_t) (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.28)
  n1: 90177536 0x300EFAA: void* operator new<llvm::MallocAllocator, 4096ul, 4096ul, 128ul>(unsigned long, llvm::BumpPtrAllocatorImpl<llvm::MallocAllocator, 4096ul, 4096ul, 128ul>&) [clone .constprop.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
   n2: 90177536 0x301314B: llvm::GISelCSEInfo::insertInstr(llvm::MachineInstr*, void*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n1: 90173440 0x301BE92: llvm::CSEMIRBuilder::buildInstr(unsigned int, llvm::ArrayRef<llvm::DstOp>, llvm::ArrayRef<llvm::SrcOp>, std::optional<unsigned int>) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
     n1: 90173440 0x30FAB71: llvm::MachineIRBuilder::buildUndef(llvm::DstOp const&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
      n1: 90173440 0x30AD9E8: llvm::LegalizerHelper::moreElementsVector(llvm::MachineInstr&, unsigned int, llvm::LLT) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
       n1: 90173440 0x309B55A: llvm::Legalizer::legalizeMachineFunction(llvm::MachineFunction&, llvm::LegalizerInfo const&, llvm::ArrayRef<llvm::GISelChangeObserver*>, llvm::LostDebugLocObserver&, llvm::MachineIRBuilder&, llvm::GISelKnownBits*) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
        n1: 90173440 0x309D98C: llvm::Legalizer::runOnMachineFunction(llvm::MachineFunction&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
         n1: 90173440 0x1D9149F: llvm::MachineFunctionPass::runOnFunction(llvm::Function&) [clone .part.0] (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
          n1: 90173440 0x22CC029: llvm::FPPassManager::runOnFunction(llvm::Function&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
           n1: 90173440 0x22CC1B8: llvm::FPPassManager::runOnModule(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
            n1: 90173440 0x22CD68F: llvm::legacy::PassManagerImpl::run(llvm::Module&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
             n1: 90173440 0x4BDEFA: compileModule(char**, llvm::LLVMContext&) (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
              n0: 90173440 0x3DF075: main (in /home/jacob/projects/rust/build/x86_64-unknown-linux-gnu/llvm/bin/llc)
    n0: 4096 in 1 place, below massif's threshold (1.00%)
  n0: 286144 in 56 places, all below massif's threshold (1.00%)
 n0: 791469 in 788 places, all below massif's threshold (1.00%)
#-----------

@aemerson aemerson self-assigned this Jun 7, 2024
@davemgreen
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I have been looking at adding fptosi.sat support recently. Currently GISel doesn't handle them, so this will be treated like a generic intrinsic and the real problem might only be tangentially related to them.

@davemgreen
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This should be fixed for fptosi.sat, as we legalize those operations correctly after #96297.

IIRC There might be other intrinsics that hit the same issue with odd vector types, please let us know and reopen (or create a new issue) if you see any. Thanks.

@jieyouxu jieyouxu mentioned this issue Jan 24, 2025
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@programmerjake programmerjake mentioned this issue Jan 24, 2025
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