mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-26 21:32:10 +00:00
893075f46e
in a very specific use pattern embodied in the carefully reduced testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97794 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
1.1 KiB
LLVM
45 lines
1.1 KiB
LLVM
; RUN: opt -reassociate -disable-output %s
|
|
|
|
|
|
; rdar://7507855
|
|
define fastcc i32 @test1() nounwind {
|
|
entry:
|
|
%cond = select i1 undef, i32 1, i32 -1 ; <i32> [#uses=2]
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.body, %entry
|
|
%sub889 = sub i32 undef, undef ; <i32> [#uses=1]
|
|
%sub891 = sub i32 %sub889, %cond ; <i32> [#uses=0]
|
|
%add896 = sub i32 0, %cond ; <i32> [#uses=0]
|
|
ret i32 undef
|
|
}
|
|
|
|
; PR5981
|
|
define i32 @test2() nounwind ssp {
|
|
entry:
|
|
%0 = load i32* undef, align 4
|
|
%1 = mul nsw i32 undef, %0
|
|
%2 = mul nsw i32 undef, %0
|
|
%3 = add nsw i32 undef, %1
|
|
%4 = add nsw i32 %3, %2
|
|
%5 = add nsw i32 %4, 4
|
|
%6 = shl i32 %0, 3
|
|
%7 = add nsw i32 %5, %6
|
|
br label %bb4.i9
|
|
|
|
bb4.i9:
|
|
%8 = add nsw i32 undef, %1
|
|
ret i32 0
|
|
}
|
|
|
|
|
|
define i32 @test3(i32 %Arg, i32 %x1, i32 %x2, i32 %x3) {
|
|
%A = mul i32 %x1, %Arg
|
|
%B = mul i32 %Arg, %x2 ;; Part of add operation being factored, also used by C
|
|
%C = mul i32 %x3, %B
|
|
|
|
%D = add i32 %A, %B
|
|
%E = add i32 %D, %C
|
|
ret i32 %E
|
|
}
|