d3ed84ed67
CodeExtractor can currently erroneously insert an alloca into a different function than it inserts its users into, in cases where code is being extracted out of a function that has already been outlined. Add an assertion that the two blocks being inserted into are actually in the same function. Add a check to findAllocaInsertPoint in OpenMP to LLVMIR translation to prevent the aforementioned scenario from happening. OpenMPIRBuilder relies on a callback mechanism to fix-up a module later on during the finaliser step. In some cases this results in the module being invalid prior to the finalise step running. Remove calls to verifyModule wrapped in LLVM_DEBUG from CodeExtractor, as the presence of those results in the compiler crashing with -mllvm -debug due to premature module verification where it would not crash without -debug. Call ompBuilder->finalize() the end of mlir::translateModuleToLLVMIR, in order to make sure the module has actually been finalized prior to trying to verify it. Resolves https://github.com/llvm/llvm-project/issues/138102. --------- Signed-off-by: Kajetan Puchalski <kajetan.puchalski@arm.com>
54 lines
1.6 KiB
LLVM
54 lines
1.6 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt -S -passes='function(instsimplify),hotcoldsplit' -hotcoldsplit-threshold=-1 < %s 2>&1 | FileCheck %s
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; RUN: opt -passes='function(instcombine),hotcoldsplit,function(instsimplify)' %s -o /dev/null
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64"
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%a = type { i64, i64 }
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%b = type { i64 }
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; CHECK: @f
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; CHECK-LABEL: codeRepl:
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; CHECK-NOT: @llvm.assume
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; CHECK: }
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; CHECK: declare {{.*}}@llvm.assume
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; CHECK: define {{.*}}@f.cold.1(i64 %load1)
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; CHECK-LABEL: newFuncRoot:
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; CHECK: %cmp1 = icmp eq i64 %load1, 0
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; CHECK-NOT: call void @llvm.assume
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; CHECK: define {{.*}}@f.cold.2()
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; CHECK-LABEL: newFuncRoot:
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; CHECK: }
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define void @f() {
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entry:
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%i = getelementptr inbounds %a, ptr null, i64 0, i32 1
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br label %label
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label: ; preds = %entry
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%load0 = load ptr, ptr %i, align 8
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%i3 = getelementptr inbounds %b, ptr %load0, i64 undef, i32 0
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%load1 = load i64, ptr %i3, align 8
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%cmp0 = icmp ugt i64 %load1, 1
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br i1 %cmp0, label %if.then, label %if.else
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if.then: ; preds = %label
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unreachable
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if.else: ; preds = %label
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call void @g(ptr undef)
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%load2 = load i64, ptr undef, align 8
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%i7 = and i64 %load2, -16
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%i8 = inttoptr i64 %i7 to ptr
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%cmp1 = icmp eq i64 %load1, 0
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call void @llvm.assume(i1 %cmp1)
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unreachable
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}
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declare void @g(ptr)
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declare void @llvm.assume(i1 noundef) #0
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attributes #0 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
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