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llvm-project/llvm/test/Transforms/CorrelatedValuePropagation/deopt.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

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5.3 KiB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=correlated-propagation -S < %s | FileCheck %s
declare void @use()
declare void @use_ptr(i8*)
; test requires a mix of context sensative refinement, and analysis
; of the originating IR pattern. Neither part is enough in isolation.
define void @test1(i1 %c, i1 %c2) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i64 -1, i64 1
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C2:%.*]], i64 [[SEL]], i64 0
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[SEL2]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]]
; CHECK: taken:
; CHECK-NEXT: call void @use() [ "deopt"(i64 1) ]
; CHECK-NEXT: ret void
; CHECK: untaken:
; CHECK-NEXT: ret void
;
%sel = select i1 %c, i64 -1, i64 1
%sel2 = select i1 %c2, i64 %sel, i64 0
%cmp = icmp sgt i64 %sel2, 0
br i1 %cmp, label %taken, label %untaken
taken:
call void @use() ["deopt" (i64 %sel2)]
ret void
untaken:
ret void
}
declare void @llvm.assume(i1)
declare void @llvm.experimental.guard(i1,...)
; Same as test1, but with assume not branch
define void @test1_assume(i1 %c, i1 %c2) {
; CHECK-LABEL: @test1_assume(
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i64 -1, i64 1
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C2:%.*]], i64 [[SEL]], i64 0
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[SEL2]], 0
; CHECK-NEXT: call void @llvm.assume(i1 [[CMP]])
; CHECK-NEXT: call void @use() [ "deopt"(i64 1) ]
; CHECK-NEXT: ret void
;
%sel = select i1 %c, i64 -1, i64 1
%sel2 = select i1 %c2, i64 %sel, i64 0
%cmp = icmp sgt i64 %sel2, 0
call void @llvm.assume(i1 %cmp)
call void @use() ["deopt" (i64 %sel2)]
ret void
}
; Same as test1, but with guard not branch
define void @test1_guard(i1 %c, i1 %c2) {
; CHECK-LABEL: @test1_guard(
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i64 -1, i64 1
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C2:%.*]], i64 [[SEL]], i64 0
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[SEL2]], 0
; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[CMP]]) [ "deopt"(i64 [[SEL2]]) ]
; CHECK-NEXT: call void @use() [ "deopt"(i64 1) ]
; CHECK-NEXT: ret void
;
%sel = select i1 %c, i64 -1, i64 1
%sel2 = select i1 %c2, i64 %sel, i64 0
%cmp = icmp sgt i64 %sel2, 0
call void (i1, ...) @llvm.experimental.guard(i1 %cmp) ["deopt" (i64 %sel2)]
call void @use() ["deopt" (i64 %sel2)]
ret void
}
;; The rest of these are slight variations on the patterns
;; producing 1 of several adjacent constants to test generality
define void @test2(i1 %c, i1 %c2) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i64 0, i64 1
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C2:%.*]], i64 [[SEL]], i64 -1
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i64 [[SEL2]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]]
; CHECK: taken:
; CHECK-NEXT: call void @use() [ "deopt"(i64 1) ]
; CHECK-NEXT: ret void
; CHECK: untaken:
; CHECK-NEXT: ret void
;
%sel = select i1 %c, i64 0, i64 1
%sel2 = select i1 %c2, i64 %sel, i64 -1
%cmp = icmp sgt i64 %sel2, 0
br i1 %cmp, label %taken, label %untaken
taken:
call void @use() ["deopt" (i64 %sel2)]
ret void
untaken:
ret void
}
define void @test3(i1 %c, i1 %c2) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i64 0, i64 1
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C2:%.*]], i64 [[SEL]], i64 2
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i64 [[SEL2]], 1
; CHECK-NEXT: br i1 [[CMP]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]]
; CHECK: taken:
; CHECK-NEXT: call void @use() [ "deopt"(i64 2) ]
; CHECK-NEXT: ret void
; CHECK: untaken:
; CHECK-NEXT: ret void
;
%sel = select i1 %c, i64 0, i64 1
%sel2 = select i1 %c2, i64 %sel, i64 2
%cmp = icmp sgt i64 %sel2, 1
br i1 %cmp, label %taken, label %untaken
taken:
call void @use() ["deopt" (i64 %sel2)]
ret void
untaken:
ret void
}
define void @test4(i1 %c, i1 %c2) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: [[SEL:%.*]] = select i1 [[C:%.*]], i64 0, i64 1
; CHECK-NEXT: [[SEL2:%.*]] = select i1 [[C2:%.*]], i64 0, i64 1
; CHECK-NEXT: [[ADD1:%.*]] = add nuw nsw i64 0, [[SEL]]
; CHECK-NEXT: [[ADD2:%.*]] = add nuw nsw i64 [[ADD1]], [[SEL2]]
; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i64 [[ADD2]], 1
; CHECK-NEXT: br i1 [[CMP]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]]
; CHECK: taken:
; CHECK-NEXT: call void @use() [ "deopt"(i64 2) ]
; CHECK-NEXT: ret void
; CHECK: untaken:
; CHECK-NEXT: ret void
;
%sel = select i1 %c, i64 0, i64 1
%sel2 = select i1 %c2, i64 0, i64 1
%add1 = add i64 0, %sel
%add2 = add i64 %add1, %sel2
%cmp = icmp sgt i64 %add2, 1
br i1 %cmp, label %taken, label %untaken
taken:
call void @use() ["deopt" (i64 %add2)]
ret void
untaken:
ret void
}
define void @test5(i64 %a, i8* nonnull %p) {
; CHECK-LABEL: @test5(
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i64 [[A:%.*]], 0
; CHECK-NEXT: br i1 [[CMP]], label [[TAKEN:%.*]], label [[UNTAKEN:%.*]]
; CHECK: taken:
; CHECK-NEXT: call void @use_ptr(i8* nonnull [[P:%.*]]) [ "deopt"(i64 0) ]
; CHECK-NEXT: ret void
; CHECK: untaken:
; CHECK-NEXT: ret void
;
%cmp = icmp eq i64 %a, 0
br i1 %cmp, label %taken, label %untaken
taken:
call void @use_ptr(i8* %p) ["deopt" (i64 %a)]
ret void
untaken:
ret void
}
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