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This patch fixes bug 23800 ( https://llvm.org/bugs/show_bug.cgi?id=23800#c2 ). There existed a case where the index operand from extractelement was directly used to create a shufflevector mask. Since the index can be of any integral type but the mask must only contain 32 bit integers a 64 bit index operand led to an assertion error later on. Committed on behalf of mpflanzer (Moritz Pflanzer) Differential Revision: http://reviews.llvm.org/D10838 llvm-svn: 243851
14 lines
558 B
Common Lisp
14 lines
558 B
Common Lisp
// RUN: %clang_cc1 -emit-llvm -O0 %s -o - | FileCheck %s
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// The shuffle vector mask must always be of i32 vector type
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// See http://reviews.llvm.org/D10838 and https://llvm.org/bugs/show_bug.cgi?id=23800#c2
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// for more information about a bug where a 64 bit index operand causes the generation
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// of an invalid mask
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typedef unsigned int uint2 __attribute((ext_vector_type(2)));
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void vector_shufflevector_valid(void) {
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//CHECK: {{%.*}} = shufflevector <2 x i32> {{%.*}}, <2 x i32> undef, <2 x i32> <i32 0, i32 undef>
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(uint2)(((uint2)(0)).s0, 0);
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}
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