Files
clang-p2996/llvm/test/Transforms/ConstantHoisting/X86/phi.ll
Fangrui Song f4b25f700a [ConstantHoisting] Call cleanup() in ConstantHoistingPass::runImpl to avoid dangling elements in ConstIntInfoVec for new PM
Summary:
ConstIntInfoVec contains elements extracted from the previous function.
In new PM, releaseMemory() is not called and the dangling elements can
cause segfault in findConstantInsertionPoint.

Rename releaseMemory() to cleanup() to deliver the idea that it is
mandatory and call cleanup() in ConstantHoistingPass::runImpl to fix
this.

Reviewers: ormris, zzheng, dmgreen, wmi

Reviewed By: ormris, wmi

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58589

llvm-svn: 355174
2019-03-01 05:27:01 +00:00

118 lines
3.1 KiB
LLVM

; RUN: opt -S -consthoist < %s | FileCheck %s
; RUN: opt -S -passes=consthoist < %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.9.0"
; PR18626
define i8* @test1(i1 %cmp, i64* %tmp) {
entry:
call void @foo(i8* inttoptr (i64 68719476735 to i8*))
br i1 %cmp, label %if.end, label %return
if.end: ; preds = %bb1
call void @foo(i8* inttoptr (i64 68719476736 to i8*))
br label %return
return:
%retval.0 = phi i8* [ null, %entry ], [ inttoptr (i64 68719476736 to i8*), %if.end ]
store i64 1172321806, i64* %tmp
ret i8* %retval.0
; CHECK-LABEL: @test1
; CHECK: if.end:
; CHECK: %2 = inttoptr i64 %const to i8*
; CHECK-NEXT: br
; CHECK: return:
; CHECK-NEXT: %retval.0 = phi i8* [ null, %entry ], [ %2, %if.end ]
}
define void @test2(i1 %cmp, i64** %tmp) {
entry:
call void @foo(i8* inttoptr (i64 68719476736 to i8*))
br i1 %cmp, label %if.end, label %return
if.end: ; preds = %bb1
call void @foo(i8* inttoptr (i64 68719476736 to i8*))
br label %return
return:
store i64* inttoptr (i64 68719476735 to i64*), i64** %tmp
ret void
; CHECK-LABEL: @test2
; CHECK: return:
; CHECK-NEXT: %const_mat = add i64 %const, -1
; CHECK-NEXT: inttoptr i64 %const_mat to i64*
}
declare void @foo(i8*)
; PR18768
define i32 @test3(i1 %c) {
entry:
br i1 %c, label %if.then, label %if.end3
if.then: ; preds = %entry
br label %if.end3
if.end3: ; preds = %if.then, %entry
%d.0 = phi i32* [ inttoptr (i64 985162435264511 to i32*), %entry ], [ null, %if.then ]
%cmp4 = icmp eq i32* %d.0, inttoptr (i64 985162435264511 to i32*)
%cmp6 = icmp eq i32* %d.0, inttoptr (i64 985162418487296 to i32*)
%or = or i1 %cmp4, %cmp6
br i1 %or, label %if.then8, label %if.end9
if.then8: ; preds = %if.end3
ret i32 1
if.end9: ; preds = %if.then8, %if.end3
ret i32 undef
}
; <rdar://problem/16394449>
define i64 @switch_test1(i64 %a) {
; CHECK-LABEL: @switch_test1
; CHECK: %0 = phi i64 [ %const, %case2 ], [ %const_mat, %Entry ], [ %const_mat, %Entry ]
Entry:
%sel = add i64 %a, 4519019440
switch i64 %sel, label %fail [
i64 462, label %continuation
i64 449, label %case2
i64 443, label %continuation
]
case2:
br label %continuation
continuation:
%0 = phi i64 [ 4519019440, %case2 ], [ 4519019460, %Entry ], [ 4519019460, %Entry ]
ret i64 0;
fail:
ret i64 -1;
}
define i64 @switch_test2(i64 %a) {
; CHECK-LABEL: @switch_test2
; CHECK: %2 = phi i64* [ %1, %case2 ], [ %0, %Entry ], [ %0, %Entry ]
Entry:
%sel = add i64 %a, 4519019440
switch i64 %sel, label %fail [
i64 462, label %continuation
i64 449, label %case2
i64 443, label %continuation
]
case2:
br label %continuation
continuation:
%0 = phi i64* [ inttoptr(i64 4519019440 to i64*), %case2 ], [ inttoptr(i64 4519019460 to i64*), %Entry ], [ inttoptr(i64 4519019460 to i64*), %Entry ]
ret i64 0;
fail:
ret i64 -1;
}