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new testcase for x86 backend miscompilation 

llvm-svn: 33883
This commit is contained in:
Chris Lattner 2007-02-04 20:15:15 +00:00
parent 19083a4671
commit 03503b5e31
1 changed files with 21 additions and 0 deletions
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21
llvm/test/CodeGen/X86/2007-02-04-OrAddrMode.ll Normal file
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; RUN: llvm-as < %s | llc -march=x86 | grep 'orl $1, %eax' &&
; RUN: llvm-as < %s | llc -march=x86 | grep 'leal 3(,%eax,8)'
;; This example can't fold the or into an LEA.
define i32 @test(float ** %tmp2, i32 %tmp12) {
%tmp3 = load float** %tmp2
%tmp132 = shl i32 %tmp12, 2 ; <i32> [#uses=1]
%tmp3 = bitcast float* %tmp3 to i8* ; <i8*> [#uses=1]
%ctg2 = getelementptr i8* %tmp3, i32 %tmp132 ; <i8*> [#uses=1]
%tmp6 = ptrtoint i8* %ctg2 to i32 ; <i32> [#uses=1]
%tmp14 = or i32 %tmp6, 1 ; <i32> [#uses=1]
ret i32 %tmp14
}
;; This can!
define i32 @test2(i32 %a, i32 %b) {
%c = shl i32 %a, 3
%d = or i32 %c, 3
ret i32 %d
}