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llvm-project/llvm/test/CodeGen/X86/pr24602.ll

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[CodeGen] Check FoldConstantArithmetic result before using it. Fixes PR24602: r245689 introduced an unguarded use of SelectionDAG::FoldConstantArithmetic, which returns 0 when it fails because of opaque (hoisted) constants. llvm-svn: 246217
2015-08-28 05:46:04 +08:00
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
; PR24602: Make sure we don't barf on non-foldable code (with opaque constants).
; CHECK-LABEL: pr24602:
[CodeGen] Unify MBB reference format in both MIR and debug output As part of the unification of the debug format and the MIR format, print MBB references as '%bb.5'. The MIR printer prints the IR name of a MBB only for block definitions. * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)->getNumber\(\)/" << printMBBReference(*\1)/g' * find . \( -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#" << ([a-zA-Z0-9_]+)\.getNumber\(\)/" << printMBBReference(\1)/g' * find . \( -name "*.txt" -o -name "*.s" -o -name "*.mir" -o -name "*.cpp" -o -name "*.h" -o -name "*.ll" \) -type f -print0 | xargs -0 sed -i '' -E 's/BB#([0-9]+)/%bb.\1/g' * grep -nr 'BB#' and fix Differential Revision: https://reviews.llvm.org/D40422 llvm-svn: 319665
2017-12-05 01:18:51 +08:00
; CHECK-NEXT: # %bb.0
[CodeGen] Check FoldConstantArithmetic result before using it. Fixes PR24602: r245689 introduced an unguarded use of SelectionDAG::FoldConstantArithmetic, which returns 0 when it fails because of opaque (hoisted) constants. llvm-svn: 246217
2015-08-28 05:46:04 +08:00
; CHECK-NEXT: movabsq $-10000000000, [[CST:%[a-z0-9]+]]
; CHECK-NEXT: imulq [[CST]], %rsi
; CHECK-NEXT: leaq (%rdi,%rsi,8), %rax
; CHECK-NEXT: movq [[CST]], (%rdi,%rsi,8)
; CHECK-NEXT: retq
define i64* @pr24602(i64* %p, i64 %n) nounwind {
%mul = mul nsw i64 %n, -10000000000
%add.ptr = getelementptr inbounds i64, i64* %p, i64 %mul
store i64 -10000000000, i64* %add.ptr
ret i64* %add.ptr
}