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llvm-mirror/test/Transforms/GVN/preserve-analysis.ll
Arthur Eubanks 73f39e529d [NewPM] Pin tests with -debug-pass to legacy PM
-debug-pass is a legacy PM only option.

Some tests checks that the pass returned that it made a change,
which is not relevant to the NPM, since passes return PreservedAnalyses.

Some tests check that passes are freed at the proper time, which is also
not relevant to the NPM.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D87945
2020-09-22 17:54:25 -07:00

57 lines
1.5 KiB
LLVM

; RUN: opt < %s -debug-pass=Structure -indvars -gvn -indvars -enable-new-pm=0 2>&1 -S | FileCheck --check-prefix=CHECK --check-prefix=IR %s
; RUN: opt < %s -debug-pass-manager -passes='require<domtree>,loop(loop-simplifycfg),gvn,loop(indvars)' 2>&1 -S | FileCheck --check-prefix=NEW-PM --check-prefix=IR %s
; Check CFG-only analysis are preserved by SCCP by running it between 2
; loop-vectorize runs.
; CHECK: Dominator Tree Construction
; CHECK: Natural Loop Information
; CHECK: Canonicalize natural loops
; CHECK: LCSSA Verifier
; CHECK: Loop-Closed SSA Form Pass
; CHECK: Global Value Numbering
; CHECK-NOT: Dominator Tree Construction
; CHECK-NOT: Natural Loop Information
; CHECK: Canonicalize natural loops
; NEW-PM-DAG: Running analysis: LoopAnalysis on test
; NEW-PM-DAG: Running analysis: DominatorTreeAnalysis on test
; NEW-PM: Running pass: GVN on test
; NEW-PM-NOT: Running analysis: LoopAnalysis on test
; NEW-PM-NOT: Running analysis: DominatorTreeAnalysis on test
declare i1 @cond()
declare void @dostuff()
define i32 @test() {
; IR-LABEL: define i32 @test()
; IR-LABEL: header:
; IR: br i1 false, label %then, label %latch
; IR-LABEL: then:
; IR-NEXT: call void @dostuff()
; IR-NEXT: br label %latch
entry:
%res = add i32 1, 10
br label %header
header:
%iv = phi i32 [ %res, %entry ], [ 0, %latch ]
%ic = icmp eq i32 %res, 99
br i1 %ic, label %then, label %latch
then:
br label %then.2
then.2:
call void @dostuff()
br label %latch
latch:
%ec = call i1 @cond()
br i1 %ec, label %exit, label %header
exit:
ret i32 %iv
}