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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -mtriple x86_64--linux -passes=instcombine -S | FileCheck %s
; REQUIRES: x86-registered-target
; PR1201
; 'if (p) delete p;' cannot result in a call to 'operator delete(0)'.
define void @test6a(ptr %foo) minsize {
; CHECK-LABEL: @test6a(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq ptr [[FOO:%.*]], null
; CHECK-NEXT: br i1 [[TOBOOL]], label [[IF_END:%.*]], label [[IF_THEN:%.*]]
; CHECK: if.then:
; CHECK-NEXT: tail call void @_ZdlPv(ptr [[FOO]]) #[[ATTR5:[0-9]+]]
; CHECK-NEXT: br label [[IF_END]]
; CHECK: if.end:
; CHECK-NEXT: ret void
;
entry:
%tobool = icmp eq ptr %foo, null
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
tail call void @_ZdlPv(ptr %foo) builtin
br label %if.end
if.end: ; preds = %entry, %if.then
ret void
}
declare ptr @_ZnwmRKSt9nothrow_t(i64, ptr) nobuiltin
declare void @_ZdlPvRKSt9nothrow_t(ptr, ptr) nobuiltin
declare i32 @__gxx_personality_v0(...)
declare void @_ZN1AC2Ev(ptr %this)
define void @test7() personality ptr @__gxx_personality_v0 {
; CHECK-LABEL: @test7(
; CHECK-NEXT: entry:
; CHECK-NEXT: invoke void @_ZN1AC2Ev(ptr undef)
; CHECK-NEXT: to label [[DOTNOEXC_I:%.*]] unwind label [[LPAD_I:%.*]]
; CHECK: .noexc.i:
; CHECK-NEXT: unreachable
; CHECK: lpad.i:
; CHECK-NEXT: [[TMP0:%.*]] = landingpad { ptr, i32 }
; CHECK-NEXT: cleanup
; CHECK-NEXT: resume { ptr, i32 } [[TMP0]]
;
entry:
%nt = alloca i8
%call.i = tail call ptr @_ZnwmRKSt9nothrow_t(i64 1, ptr %nt) builtin nounwind
invoke void @_ZN1AC2Ev(ptr undef)
to label %.noexc.i unwind label %lpad.i
.noexc.i: ; preds = %entry
unreachable
lpad.i: ; preds = %entry
%0 = landingpad { ptr, i32 } cleanup
call void @_ZdlPvRKSt9nothrow_t(ptr %call.i, ptr %nt) builtin nounwind
resume { ptr, i32 } %0
}
declare ptr @_Znwm(i64) nobuiltin
define ptr @_Znwj(i32 %n) nobuiltin {
; CHECK-LABEL: @_Znwj(
; CHECK-NEXT: [[Z:%.*]] = zext i32 [[N:%.*]] to i64
; CHECK-NEXT: [[M:%.*]] = call ptr @_Znwm(i64 [[Z]])
; CHECK-NEXT: ret ptr [[M]]
;
%z = zext i32 %n to i64
%m = call ptr @_Znwm(i64 %z)
ret ptr %m
}
declare ptr @_Znam(i64) nobuiltin
declare ptr @_Znaj(i32) nobuiltin
declare void @_ZdlPv(ptr) nobuiltin
declare void @_ZdaPv(ptr) nobuiltin
define linkonce void @_ZdlPvm(ptr %p, i64) nobuiltin {
; CHECK-LABEL: @_ZdlPvm(
; CHECK-NEXT: call void @_ZdlPv(ptr [[P:%.*]])
; CHECK-NEXT: ret void
;
call void @_ZdlPv(ptr %p)
ret void
}
define linkonce void @_ZdlPvj(ptr %p, i32) nobuiltin {
; CHECK-LABEL: @_ZdlPvj(
; CHECK-NEXT: call void @_ZdlPv(ptr [[P:%.*]])
; CHECK-NEXT: ret void
;
call void @_ZdlPv(ptr %p)
ret void
}
define linkonce void @_ZdaPvm(ptr %p, i64) nobuiltin {
; CHECK-LABEL: @_ZdaPvm(
; CHECK-NEXT: call void @_ZdaPv(ptr [[P:%.*]])
; CHECK-NEXT: ret void
;
call void @_ZdaPv(ptr %p)
ret void
}
define linkonce void @_ZdaPvj(ptr %p, i32) nobuiltin {
; CHECK-LABEL: @_ZdaPvj(
; CHECK-NEXT: call void @_ZdaPv(ptr [[P:%.*]])
; CHECK-NEXT: ret void
;
call void @_ZdaPv(ptr %p)
ret void
}
; new(size_t, align_val_t)
declare ptr @_ZnwmSt11align_val_t(i64, i64) nobuiltin
; new[](size_t, align_val_t)
declare ptr @_ZnamSt11align_val_t(i64, i64) nobuiltin
; new(size_t, align_val_t, nothrow)
declare ptr @_ZnwmSt11align_val_tRKSt9nothrow_t(i64, i64, ptr) nobuiltin
; new[](size_t, align_val_t, nothrow)
declare ptr @_ZnamSt11align_val_tRKSt9nothrow_t(i64, i64, ptr) nobuiltin
; delete(ptr, align_val_t)
declare void @_ZdlPvSt11align_val_t(ptr, i64) nobuiltin
; delete[](ptr, align_val_t)
declare void @_ZdaPvSt11align_val_t(ptr, i64) nobuiltin
; delete(ptr, align_val_t, nothrow)
declare void @_ZdlPvSt11align_val_tRKSt9nothrow_t(ptr, i64, ptr) nobuiltin
; delete[](ptr, align_val_t, nothrow)
declare void @_ZdaPvSt11align_val_tRKSt9nothrow_t(ptr, i64, ptr) nobuiltin
; delete(ptr, unsigned long, align_val_t)
declare void @_ZdlPvmSt11align_val_t(ptr, i64, i64) nobuiltin
; delete[](ptr, unsigned long, align_val_t)
declare void @_ZdaPvmSt11align_val_t(ptr, i64, i64) nobuiltin
declare void @llvm.assume(i1)
define void @test8() {
; CHECK-LABEL: @test8(
; CHECK-NEXT: ret void
;
%nt = alloca i8
%nw = call ptr @_Znwm(i64 32) builtin
call void @_ZdlPv(ptr %nw) builtin
%na = call ptr @_Znam(i64 32) builtin
call void @_ZdaPv(ptr %na) builtin
%nwm = call ptr @_Znwm(i64 32) builtin
call void @_ZdlPvm(ptr %nwm, i64 32) builtin
%nam = call ptr @_Znam(i64 32) builtin
call void @_ZdaPvm(ptr %nam, i64 32) builtin
%nwa = call ptr @_ZnwmSt11align_val_t(i64 32, i64 8) builtin
call void @_ZdlPvSt11align_val_t(ptr %nwa, i64 8) builtin
%naa = call ptr @_ZnamSt11align_val_t(i64 32, i64 8) builtin
call void @_ZdaPvSt11align_val_t(ptr %naa, i64 8) builtin
%nwat = call ptr @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 32, i64 8, ptr %nt) builtin
call void @_ZdlPvSt11align_val_tRKSt9nothrow_t(ptr %nwat, i64 8, ptr %nt) builtin
%naat = call ptr @_ZnamSt11align_val_tRKSt9nothrow_t(i64 32, i64 8, ptr %nt) builtin
call void @_ZdaPvSt11align_val_tRKSt9nothrow_t(ptr %naat, i64 8, ptr %nt) builtin
%nwa2 = call ptr @_ZnwmSt11align_val_t(i64 32, i64 8) builtin
call void @_ZdlPvmSt11align_val_t(ptr %nwa2, i64 32, i64 8) builtin
%naa2 = call ptr @_ZnamSt11align_val_t(i64 32, i64 8) builtin
call void @_ZdaPvmSt11align_val_t(ptr %naa2, i64 32, i64 8) builtin
; Check that the alignment assume does not prevent the removal.
%nwa3 = call ptr @_ZnwmSt11align_val_t(i64 32, i64 16) builtin
call void @llvm.assume(i1 true) [ "align"(ptr %nwa3, i64 16) ]
call void @_ZdlPvmSt11align_val_t(ptr %nwa3, i64 32, i64 16) builtin
ret void
}
define void @test10() {
; CHECK-LABEL: @test10(
; CHECK-NEXT: call void @_ZdlPv(ptr null)
; CHECK-NEXT: ret void
;
call void @_ZdlPv(ptr null)
ret void
}
define void @test11() {
; CHECK-LABEL: @test11(
; CHECK-NEXT: [[CALL:%.*]] = call dereferenceable_or_null(8) ptr @_Znwm(i64 8) #[[ATTR5]]
; CHECK-NEXT: call void @_ZdlPv(ptr [[CALL]])
; CHECK-NEXT: ret void
;
%call = call ptr @_Znwm(i64 8) builtin
call void @_ZdlPv(ptr %call)
ret void
}
declare ptr @llvm.launder.invariant.group(ptr)
declare ptr @llvm.strip.invariant.group(ptr)
define void @test17() {
; CHECK-LABEL: @test17(
; CHECK-NEXT: ret void
;
%nw1 = call ptr @_Znwm(i64 32) builtin
%nw2 = call ptr @llvm.launder.invariant.group(ptr %nw1)
%nw3 = call ptr @llvm.strip.invariant.group(ptr %nw2)
store i8 1, ptr %nw3
call void @_ZdlPv(ptr %nw2) builtin
ret void
}
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