llvm-6502/test/Transforms/GlobalOpt/2009-11-16-BrokenPerformHeapAllocSRoA.ll
Nick Lewycky 8899d5c6fb Teach globalopt to not nuke all stores to globals. Keep them around of they
might be deliberate "one time" leaks, so that leak checkers can find them.
This is a reapply of r160602 with the fix that this time I'm committing the
code I thought I was committing last time; the I->eraseFromParent() goes
*after* the break out of the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-24 07:21:08 +00:00

27 lines
1.5 KiB
LLVM

; RUN: opt < %s -globalopt -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-apple-darwin10.0"
%struct.hashheader = type { i16, i16, i16, i16, i16, i16, i32, i32, i32, i32, i32, i32, i32, i32, i32, [5 x i8], [13 x i8], i8, i8, i8, [228 x i16], [228 x i8], [228 x i8], [228 x i8], [228 x i8], [228 x i8], [228 x i8], [128 x i8], [100 x [11 x i8]], [100 x i32], [100 x i32], i16 }
%struct.strchartype = type { i8*, i8*, i8* }
@hashheader = internal global %struct.hashheader zeroinitializer, align 32 ; <%struct.hashheader*> [#uses=1]
@chartypes = internal global %struct.strchartype* null ; <%struct.strchartype**> [#uses=1]
; CHECK-NOT: @hashheader
; CHECK-NOT: @chartypes
; based on linit in office-ispell
define void @test() nounwind ssp {
%1 = load i32* getelementptr inbounds (%struct.hashheader* @hashheader, i64 0, i32 13), align 8 ; <i32> [#uses=1]
%2 = sext i32 %1 to i64 ; <i64> [#uses=1]
%3 = mul i64 %2, ptrtoint (%struct.strchartype* getelementptr (%struct.strchartype* null, i64 1) to i64) ; <i64> [#uses=1]
%4 = tail call i8* @malloc(i64 %3) ; <i8*> [#uses=1]
; CHECK-NOT: call i8* @malloc(i64
%5 = bitcast i8* %4 to %struct.strchartype* ; <%struct.strchartype*> [#uses=1]
store %struct.strchartype* %5, %struct.strchartype** @chartypes, align 8
ret void
}
declare noalias i8* @malloc(i64)