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TheRock/compiler/amd-llvm/llvm/test/Transforms/SCCP/ipsccp-preserve-analysis.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

59 lines
1.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; Basic test to check that DominatorTreeAnalysis is preserved by IPSCCP and
; the following analysis can re-use it. The test contains two trivial functions
; IPSCCP can simplify, so we can test the case where IPSCCP makes changes.
; RUN: opt -disable-verify -debug-pass-manager \
; RUN: -passes='function(require<domtree>,require<postdomtree>),ipsccp,function(require<domtree>,require<postdomtree>)' -S %s 2>&1 \
; RUN: | FileCheck -check-prefixes=IR,NEW-PM %s
; RUN: opt -passes='function(require<postdomtree>),ipsccp,function(verify<domtree>)' -S %s | FileCheck -check-prefixes=IR %s
; NEW-PM: Running analysis: DominatorTreeAnalysis on f1
; NEW-PM: Running analysis: PostDominatorTreeAnalysis on f1
; NEW-PM: Running analysis: DominatorTreeAnalysis on f2
; NEW-PM: Running analysis: PostDominatorTreeAnalysis on f2
; NEW-PM: Running pass: IPSCCPPass
; NEW-PM-DAG: Running analysis: AssumptionAnalysis on f1
; NEW-PM-DAG: Running analysis: AssumptionAnalysis on f2
; NEW-PM-NOT: Running analysis: AssumptionAnalysis
define internal i32 @f1() readnone {
; IR-LABEL: define internal i32 @f1(
; IR-SAME: ) #[[ATTR0:[0-9]+]] {
; IR-NEXT: [[ENTRY:.*:]]
; IR-NEXT: br label %[[BB2:.*]]
; IR: [[BB2]]:
; IR-NEXT: ret i32 poison
;
entry:
br i1 false, label %bb1, label %bb2
bb1:
ret i32 10
bb2:
ret i32 10
}
define i32 @f2(i32 %n) {
; IR-LABEL: define i32 @f2(
; IR-SAME: i32 [[N:%.*]]) {
; IR-NEXT: [[I:%.*]] = call i32 @f1()
; IR-NEXT: br label %[[BBTRUE:.*]]
; IR: [[BBTRUE]]:
; IR-NEXT: ret i32 0
;
%i = call i32 @f1()
%cmp = icmp eq i32 %i, 10
br i1 %cmp, label %bbtrue, label %bbfalse
bbtrue:
ret i32 0
bbfalse:
%res = add i32 %n, %i
ret i32 %res
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; NEW-PM: {{.*}}