From ddfa02ba248c981ed346708ee3a80d834b684f97 Mon Sep 17 00:00:00 2001 From: Eli Friedman Date: Mon, 21 Mar 2011 01:33:03 +0000 Subject: [PATCH] This README entry was fixed recently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127982 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/README.txt | 28 ---------------------------- 1 file changed, 28 deletions(-) diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 45da3ddb607..63f1f79962b 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -392,34 +392,6 @@ PHI Slicing could be extended to do this. //===---------------------------------------------------------------------===// -LSR should know what GPR types a target has from TargetData. This code: - -volatile short X, Y; // globals - -void foo(int N) { - int i; - for (i = 0; i < N; i++) { X = i; Y = i*4; } -} - -produces two near identical IV's (after promotion) on PPC/ARM: - -LBB1_2: - ldr r3, LCPI1_0 - ldr r3, [r3] - strh r2, [r3] - ldr r3, LCPI1_1 - ldr r3, [r3] - strh r1, [r3] - add r1, r1, #4 - add r2, r2, #1 <- [0,+,1] - sub r0, r0, #1 <- [0,-,1] - cmp r0, #0 - bne LBB1_2 - -LSR should reuse the "+" IV for the exit test. - -//===---------------------------------------------------------------------===// - Tail call elim should be more aggressive, checking to see if the call is followed by an uncond branch to an exit block.