d0acd97c68
As mentioned in http://lists.llvm.org/pipermail/llvm-dev/2020-July/143395.html, loop-unswitch has not been ported to the NPM. Instead people are using simple-loop-unswitch. Pin all tests in Transforms/LoopUnswitch to legacy PM and replace all other uses of loop-unswitch with simple-loop-unswitch. One test that didn't fit into the above was 2014-06-21-congruent-constant.ll which seems to only pass with loop-unswitch. That is also pinned to legacy PM. Now all tests containing "-loop-unswitch" anywhere in the test succeed with NPM turned on by default. Reviewed By: ychen Differential Revision: https://reviews.llvm.org/D85360
30 lines
1.3 KiB
LLVM
30 lines
1.3 KiB
LLVM
; RUN: opt < %s -loop-unswitch -enable-new-pm=0 -S | FileCheck %s
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; RUN: opt < %s -loop-unswitch -enable-new-pm=0 -enable-mssa-loop-dependency=true -verify-memoryssa -S | FileCheck %s
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; In cases where two address spaces do not have the same size pointer, the
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; input for the addrspacecast should not be used as a substitute for itself
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; when manipulating the pointer.
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target datalayout = "e-m:e-p:16:16-p1:32:16-i32:16-i64:16-n8:16"
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define void @foo() {
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; CHECK-LABEL: @foo
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entry:
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%arrayidx.i1 = getelementptr inbounds i16, i16* undef, i16 undef
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%arrayidx.i = addrspacecast i16* %arrayidx.i1 to i16 addrspace(1)*
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br i1 undef, label %for.body.i, label %bar.exit
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for.body.i: ; preds = %for.body.i, %entry
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; When we call makeLoopInvariant (i.e. trivial LICM) on this load, it
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; will try to find the base object to prove deferenceability. If we look
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; through the addrspacecast, we'll fail an assertion about bitwidths matching
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; CHECK-LABEL: for.body.i
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; CHECK: %0 = load i16, i16 addrspace(1)* %arrayidx.i, align 2
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%0 = load i16, i16 addrspace(1)* %arrayidx.i, align 2
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%cmp1.i = icmp eq i16 %0, 0
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br i1 %cmp1.i, label %bar.exit, label %for.body.i
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bar.exit: ; preds = %for.body.i, %entry
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ret void
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}
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