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f676e84bba
Currently operand constraint checks on "$dest = $src" are inadvertently accepting any token that contains "=". This has surprising results, e.g, "$dest != $src" is accepted as a constraint but then treated as "=". This patch ensures that only exactly the token "=" is accepted.
35 lines
1.4 KiB
TableGen
35 lines
1.4 KiB
TableGen
// RUN: not llvm-tblgen -gen-asm-writer -DT0 -I %p -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s
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// RUN: not llvm-tblgen -gen-asm-writer -DT1 -I %p -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s --check-prefix=CHECK1
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// RUN: not llvm-tblgen -gen-asm-writer -DT2 -I %p -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s --check-prefix=CHECK2
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// RUN: not llvm-tblgen -gen-asm-writer -DT3 -I %p -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s --check-prefix=CHECK3
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// RUN: not llvm-tblgen -gen-asm-writer -DT4 -I %p -I %p/../../include %s 2>&1 | FileCheck %s -DFILE=%s --check-prefix=CHECK4
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include "ConstraintChecking.inc"
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// Make sure exactly the token "=" appears.
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#ifdef T0
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// CHECK: [[FILE]]:[[@LINE+1]]:5: error: Unrecognized constraint '$dest1 != $src2' in 'Foo'
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def Foo : TestInstructionWithConstraints<"$dest1 != $src2">;
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#endif
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#ifdef T1
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// CHECK1: [[FILE]]:[[@LINE+1]]:5: error: Unrecognized constraint '$dest1 == $src2' in 'Foo'
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def Foo : TestInstructionWithConstraints<"$dest1 == $src2">;
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#endif
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#ifdef T2
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// CHECK2: [[FILE]]:[[@LINE+1]]:5: error: Unrecognized constraint '= $rhs' in 'Foo'
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def Foo : TestInstructionWithConstraints<"= $rhs">;
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#endif
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#ifdef T3
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// CHECK3: [[FILE]]:[[@LINE+1]]:5: error: Unrecognized constraint '$lhs =' in 'Foo'
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def Foo : TestInstructionWithConstraints<"$lhs =">;
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#endif
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#ifdef T4
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// CHECK4: [[FILE]]:[[@LINE+1]]:5: error: Unrecognized constraint '=' in 'Foo'
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def Foo : TestInstructionWithConstraints<"=">;
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#endif
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