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1b9d52c280
Fixes PR24602: r245689 introduced an unguarded use of SelectionDAG::FoldConstantArithmetic, which returns 0 when it fails because of opaque (hoisted) constants. llvm-svn: 246217
18 lines
590 B
LLVM
18 lines
590 B
LLVM
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
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; PR24602: Make sure we don't barf on non-foldable code (with opaque constants).
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; CHECK-LABEL: pr24602:
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; CHECK-NEXT: # BB#0
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; CHECK-NEXT: movabsq $-10000000000, [[CST:%[a-z0-9]+]]
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; CHECK-NEXT: imulq [[CST]], %rsi
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; CHECK-NEXT: leaq (%rdi,%rsi,8), %rax
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; CHECK-NEXT: movq [[CST]], (%rdi,%rsi,8)
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; CHECK-NEXT: retq
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define i64* @pr24602(i64* %p, i64 %n) nounwind {
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%mul = mul nsw i64 %n, -10000000000
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%add.ptr = getelementptr inbounds i64, i64* %p, i64 %mul
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store i64 -10000000000, i64* %add.ptr
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ret i64* %add.ptr
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}
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