3dd8c9176b
MSSA-based LICM has been enabled by default for a few years now. This drops the old AST-based implementation. Using loop(licm) will result in a fatal error, the use of loop-mssa(licm) is required (or just licm, which defaults to loop-mssa). Note that the core canSinkOrHoistInst() logic has to retain AST support for now, because it is shared with LoopSink. Differential Revision: https://reviews.llvm.org/D108244
28 lines
1.0 KiB
LLVM
28 lines
1.0 KiB
LLVM
; RUN: opt -disable-basic-aa -alias-set-saturation-threshold=2 -passes='loop-mssa(licm)' -S < %s | FileCheck %s
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; REQUIRES: asserts
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; CHECK-LABEL: @f1()
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define void @f1() {
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%lc1.10 = alloca [3 x i16]
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br label %bb1
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bb1: ; preds = %bb6, %0
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store i16 undef, i16* undef
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br label %bb2
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bb2: ; preds = %bb8, %bb1
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%_tmp18.fca.0.gep = getelementptr inbounds [3 x i16], [3 x i16]* %lc1.10, i32 0, i32 0
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%_tmp18.fca.0.load = load i16, i16* %_tmp18.fca.0.gep
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%_tmp18.fca.1.gep = getelementptr inbounds [3 x i16], [3 x i16]* %lc1.10, i32 0, i32 1
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%_tmp18.fca.1.load = load i16, i16* %_tmp18.fca.1.gep
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%_tmp18.fca.2.gep = getelementptr inbounds [3 x i16], [3 x i16]* %lc1.10, i32 0, i32 2
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%_tmp18.fca.2.load = load i16, i16* %_tmp18.fca.2.gep
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br label %bb8
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bb8: ; preds = %bb2
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br i1 undef, label %bb2, label %bb6
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bb6: ; preds = %bb8
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br label %bb1
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}
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