9ef1d37ffb
Similar to 806761a762
-mtriple= specifies the full target triple while -march= merely sets the
architecture part of the default target triple, leaving a target triple which
may not make sense.
Therefore, -march= is error-prone and not recommended for tests without a target
triple. The issue has been benign as we recognize avr-apple-darwin as ELF instead
of rejecting it outrightly.
14 lines
300 B
LLVM
14 lines
300 B
LLVM
; RUN: llc -mattr=avr6 < %s -mtriple=avr | FileCheck %s
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; Checks that atomic fences are simply removed from IR.
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; AVR is always singlethreaded so fences do nothing.
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; CHECK-LABEL: atomic_fence8
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; CHECK: ; %bb.0:
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; CHECK-NEXT: ret
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define void @atomic_fence8() {
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fence acquire
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ret void
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}
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