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[X86] Fix determining if globals with size <8 bits are large #84975

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Merged
merged 1 commit into from
Mar 12, 2024
Merged

[X86] Fix determining if globals with size <8 bits are large #84975

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2 changes: 1 addition & 1 deletion llvm/lib/Target/TargetMachine.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,7 @@ bool TargetMachine::isLargeGlobalValue(const GlobalValue *GVal) const {
GV->getName().starts_with("__stop_")))
return true;
const DataLayout &DL = GV->getParent()->getDataLayout();
uint64_t Size = DL.getTypeSizeInBits(GV->getValueType()) / 8;
uint64_t Size = DL.getTypeAllocSize(GV->getValueType());
return Size == 0 || Size > LargeDataThreshold;
}

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4 changes: 1 addition & 3 deletions llvm/test/CodeGen/X86/code-model-elf.ll
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Expand Up @@ -772,9 +772,7 @@ define dso_local i1 @load_bool() #0 {
;
; MEDIUM-SMALL-DATA-PIC-LABEL: load_bool:
; MEDIUM-SMALL-DATA-PIC: # %bb.0:
; MEDIUM-SMALL-DATA-PIC-NEXT: leaq _GLOBAL_OFFSET_TABLE_(%rip), %rax
; MEDIUM-SMALL-DATA-PIC-NEXT: movabsq $bool@GOTOFF, %rcx
; MEDIUM-SMALL-DATA-PIC-NEXT: movzbl (%rax,%rcx), %eax
; MEDIUM-SMALL-DATA-PIC-NEXT: movzbl bool(%rip), %eax
; MEDIUM-SMALL-DATA-PIC-NEXT: retq
;
; MEDIUM-PIC-LABEL: load_bool:
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