forked from OSchip/llvm-project
58 lines
2.5 KiB
LLVM
58 lines
2.5 KiB
LLVM
; Test that SCEV gets invalidated when one of its dependencies is invalidated.
|
|
;
|
|
; Each of the RUNs checks that the pass manager runs SCEV, then invalidates it
|
|
; due to a dependency being invalidated, and then re-urns it. This will
|
|
; directly fail and indicates a failure that would occur later if we ddidn't
|
|
; invalidate SCEV in this way.
|
|
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
; RUN: opt < %s -passes='require<scalar-evolution>,invalidate<domtree>,print<scalar-evolution>' \
|
|
; RUN: -debug-pass-manager -disable-output 2>&1 \
|
|
; RUN: | FileCheck %s -check-prefixes=CHECK,CHECK-DT-INVALIDATE
|
|
;
|
|
; CHECK-DT-INVALIDATE: Running pass: RequireAnalysisPass
|
|
; CHECK-DT-INVALIDATE: Running analysis: ScalarEvolutionAnalysis
|
|
; CHECK-DT-INVALIDATE: Running analysis: DominatorTreeAnalysis
|
|
; CHECK-DT-INVALIDATE: Running pass: InvalidateAnalysisPass
|
|
; CHECK-DT-INVALIDATE: Invalidating analysis: DominatorTreeAnalysis
|
|
; CHECK-DT-INVALIDATE: Running pass: ScalarEvolutionPrinterPass
|
|
; CHECK-DT-INVALIDATE: Running analysis: ScalarEvolutionAnalysis
|
|
; CHECK-DT-INVALIDATE: Running analysis: DominatorTreeAnalysis
|
|
|
|
; RUN: opt < %s -passes='require<scalar-evolution>,invalidate<loops>,print<scalar-evolution>' \
|
|
; RUN: -debug-pass-manager -disable-output 2>&1 \
|
|
; RUN: | FileCheck %s -check-prefixes=CHECK,CHECK-LI-INVALIDATE
|
|
;
|
|
; CHECK-LI-INVALIDATE: Running pass: RequireAnalysisPass
|
|
; CHECK-LI-INVALIDATE: Running analysis: ScalarEvolutionAnalysis
|
|
; CHECK-LI-INVALIDATE: Running analysis: LoopAnalysis
|
|
; CHECK-LI-INVALIDATE: Running pass: InvalidateAnalysisPass
|
|
; CHECK-LI-INVALIDATE: Invalidating analysis: LoopAnalysis
|
|
; CHECK-LI-INVALIDATE: Running pass: ScalarEvolutionPrinterPass
|
|
; CHECK-LI-INVALIDATE: Running analysis: ScalarEvolutionAnalysis
|
|
; CHECK-LI-INVALIDATE: Running analysis: LoopAnalysis
|
|
|
|
; This test isn't particularly interesting, its just enough to make sure we
|
|
; actually do some work inside of SCEV so that if we regress here despite the
|
|
; debug pass printing continuing to match, ASan and other tools can catch it.
|
|
define void @test(i32 %n) {
|
|
; CHECK-LABEL: Classifying expressions for: @test
|
|
; CHECK: Loop %loop: backedge-taken count is 14
|
|
; CHECK: Loop %loop: max backedge-taken count is 14
|
|
; CHECK: Loop %loop: Predicated backedge-taken count is 14
|
|
|
|
entry:
|
|
br label %loop
|
|
|
|
loop:
|
|
%iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ]
|
|
%iv.inc = add nsw i32 %iv, 3
|
|
%becond = icmp ne i32 %iv.inc, 46
|
|
br i1 %becond, label %loop, label %leave
|
|
|
|
leave:
|
|
ret void
|
|
}
|