58acbce3de
Summary: - Define Instruction::Freeze, let it be UnaryOperator - Add support for freeze to LLLexer/LLParser/BitcodeReader/BitcodeWriter The format is `%x = freeze <ty> %v` - Add support for freeze instruction to llvm-c interface. - Add m_Freeze in PatternMatch. - Erase freeze when lowering IR to SelDag. Reviewers: deadalnix, hfinkel, efriedma, lebedev.ri, nlopes, jdoerfert, regehr, filcab, delcypher, whitequark Reviewed By: lebedev.ri, jdoerfert Subscribers: jfb, kristof.beyls, hiraditya, lebedev.ri, steven_wu, dexonsmith, xbolva00, delcypher, spatel, regehr, trentxintong, vsk, filcab, nlopes, mehdi_amini, deadalnix, llvm-commits Differential Revision: https://reviews.llvm.org/D29011
54 lines
1.2 KiB
LLVM
54 lines
1.2 KiB
LLVM
; RUN: opt -mergefunc -S < %s | FileCheck %s
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; CHECK-LABEL: @int_ptr_arg_different
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; CHECK-NEXT: call void asm
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; CHECK-LABEL: @int_ptr_arg_same
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; CHECK-NEXT: %2 = bitcast i32* %0 to float*
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; CHECK-NEXT: tail call void @float_ptr_arg_same(float* %2)
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; CHECK-LABEL: @int_ptr_null
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; CHECK-NEXT: tail call void @float_ptr_null()
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; Used to satisfy minimum size limit
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declare void @stuff()
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; Can be merged
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define void @float_ptr_null() {
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call void asm "nop", "r"(float* null)
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call void @stuff()
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ret void
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}
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define void @int_ptr_null() {
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call void asm "nop", "r"(i32* null)
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call void @stuff()
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ret void
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}
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; Can be merged (uses same argument differing by pointer type)
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define void @float_ptr_arg_same(float*) {
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call void asm "nop", "r"(float* %0)
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call void @stuff()
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ret void
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}
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define void @int_ptr_arg_same(i32*) {
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call void asm "nop", "r"(i32* %0)
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call void @stuff()
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ret void
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}
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; Can not be merged (uses different arguments)
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define void @float_ptr_arg_different(float*, float*) {
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call void asm "nop", "r"(float* %0)
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call void @stuff()
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ret void
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}
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define void @int_ptr_arg_different(i32*, i32*) {
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call void asm "nop", "r"(i32* %1)
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call void @stuff()
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ret void
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}
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