llvm-6502/test/Transforms/InstCombine/2007-04-04-BadFoldBitcastIntoMalloc.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

20 lines
688 B
LLVM

; In the presence of a negative offset (the -8 below), a fold of a bitcast into
; a malloc messes up the element count, causing an extra 4GB to be allocated on
; 64-bit targets.
;
; RUN: opt < %s -instcombine -S | not grep {= add }
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "x86_64-unknown-freebsd6.2"
define i1 @test(i32 %tmp141, double** %tmp145)
{
%tmp133 = add i32 %tmp141, 1
%tmp134 = shl i32 %tmp133, 3
%tmp135 = add i32 %tmp134, -8
%tmp136 = malloc i8, i32 %tmp135
%tmp137 = bitcast i8* %tmp136 to double*
store double* %tmp137, double** %tmp145
ret i1 false
}