Files
clang-p2996/llvm/test/Transforms/SCCP/ipsccp-ssa-copy-nested-conds.ll
Bjorn Pettersson 8ebb3eac02 [test] Use -passes syntax when specifying pipeline in some more tests
The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
In this patch focus has been put on test cases for ConstantMerge,
ConstraintElimination, CorrelatedValuePropagation, GlobalDCE,
GlobalOpt, SCCP, TailCallElim and PredicateInfo.

Differential Revision: https://reviews.llvm.org/D114516
2021-11-27 09:52:55 +01:00

125 lines
4.8 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=ipsccp -S | FileCheck %s
; Test for PR39772
%struct.Node = type { %struct.Node*, %struct.Node*, i32 }
define i32 @check(%struct.Node* %node) {
; CHECK-LABEL: define i32 @check(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP:%.*]] = icmp eq %struct.Node* [[NODE:%.*]], null
; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]]
; CHECK: if.then:
; CHECK-NEXT: br label [[CLEANUP:%.*]]
; CHECK: if.end:
; CHECK-NEXT: [[LEFT:%.*]] = getelementptr inbounds [[STRUCT_NODE:%.*]], %struct.Node* [[NODE]], i32 0, i32 0
; CHECK-NEXT: [[TMP0:%.*]] = load %struct.Node*, %struct.Node** [[LEFT]]
; CHECK-NEXT: [[CALL:%.*]] = call i32 @check(%struct.Node* [[TMP0]])
; CHECK-NEXT: [[RIGHT:%.*]] = getelementptr inbounds [[STRUCT_NODE]], %struct.Node* [[NODE]], i32 0, i32 1
; CHECK-NEXT: [[TMP1:%.*]] = load %struct.Node*, %struct.Node** [[RIGHT]]
; CHECK-NEXT: [[CALL1:%.*]] = call i32 @check(%struct.Node* [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = load %struct.Node*, %struct.Node** [[RIGHT]]
; CHECK-NEXT: [[HEIGHT:%.*]] = getelementptr inbounds [[STRUCT_NODE]], %struct.Node* [[TMP2]], i32 0, i32 2
; CHECK-NEXT: [[TMP3:%.*]] = load i32, i32* [[HEIGHT]]
; CHECK-NEXT: [[CMP3:%.*]] = icmp ne i32 [[TMP3]], [[CALL1]]
; CHECK-NEXT: br i1 [[CMP3]], label [[IF_THEN4:%.*]], label [[IF_END5:%.*]]
; CHECK: if.then4:
; CHECK-NEXT: unreachable
; CHECK: if.end5:
; CHECK-NEXT: [[CMP6:%.*]] = icmp sgt i32 [[CALL]], [[CALL1]]
; CHECK-NEXT: br i1 [[CMP6]], label [[IF_THEN7:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then7:
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[CALL]], 1
; CHECK-NEXT: br label [[CLEANUP]]
; CHECK: if.else:
; CHECK-NEXT: [[ADD8:%.*]] = add nsw i32 [[CALL1]], 1
; CHECK-NEXT: br label [[CLEANUP]]
; CHECK: cleanup:
; CHECK-NEXT: [[RETVAL_0:%.*]] = phi i32 [ 0, [[IF_THEN]] ], [ [[ADD]], [[IF_THEN7]] ], [ [[ADD8]], [[IF_ELSE]] ]
; CHECK-NEXT: ret i32 [[RETVAL_0]]
;
entry:
%cmp = icmp eq %struct.Node* %node, null
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
br label %cleanup
if.end: ; preds = %entry
%left = getelementptr inbounds %struct.Node, %struct.Node* %node, i32 0, i32 0
%0 = load %struct.Node*, %struct.Node** %left
%call = call i32 @check(%struct.Node* %0)
%right = getelementptr inbounds %struct.Node, %struct.Node* %node, i32 0, i32 1
%1 = load %struct.Node*, %struct.Node** %right
%call1 = call i32 @check(%struct.Node* %1)
%2 = load %struct.Node*, %struct.Node** %right
%height = getelementptr inbounds %struct.Node, %struct.Node* %2, i32 0, i32 2
%3 = load i32, i32* %height
%cmp3 = icmp ne i32 %3, %call1
br i1 %cmp3, label %if.then4, label %if.end5
if.then4: ; preds = %if.end
unreachable
if.end5: ; preds = %if.end
%cmp6 = icmp sgt i32 %call, %call1
br i1 %cmp6, label %if.then7, label %if.else
if.then7: ; preds = %if.end5
%add = add nsw i32 %call, 1
br label %cleanup
if.else: ; preds = %if.end5
%add8 = add nsw i32 %call1, 1
br label %cleanup
cleanup: ; preds = %if.else, %if.then7, %if.then
%retval.0 = phi i32 [ 0, %if.then ], [ %add, %if.then7 ], [ %add8, %if.else ]
ret i32 %retval.0
}
declare i8* @test2_callee(i32, i32)
define void @test2() {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: br label [[IF_ELSE33:%.*]]
; CHECK: if.else33:
; CHECK-NEXT: br label [[IF_THEN38:%.*]]
; CHECK: if.then38:
; CHECK-NEXT: [[CALL42:%.*]] = call i8* @test2_callee(i32 0, i32 0)
; CHECK-NEXT: unreachable
;
entry:
br label %for.cond
for.cond: ; preds = %for.inc46, %entry
%op.0 = phi i32 [ 0, %entry ], [ 0, %for.inc46 ]
br label %for.body
for.body: ; preds = %for.cond
%cmp24 = icmp eq i32 %op.0, 38
br i1 %cmp24, label %if.then26, label %if.else33
if.then26: ; preds = %for.body
unreachable
if.else33: ; preds = %for.body
%cmp34 = icmp ne i32 %op.0, 80
%cmp36 = icmp ne i32 %op.0, 81
%or.cond = and i1 %cmp34, %cmp36
br i1 %or.cond, label %if.then38, label %for.inc46
if.then38: ; preds = %if.else33
%call42 = call i8* @test2_callee(i32 %op.0, i32 0)
unreachable
for.inc46: ; preds = %if.else33
br label %for.cond
}