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Enable arm jumpt table adjustment.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89143 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2009-11-17 21:24:11 +00:00
parent 202344e124
commit f04777b945
3 changed files with 2 additions and 3 deletions
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2
lib/Target/ARM/ARMConstantIslandPass.cpp
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@ -48,7 +48,7 @@ STATISTIC(NumJTInserted, "Number of jump table intermediate blocks inserted");
static cl::opt<bool>
AdjustJumpTableBlocks("arm-adjust-jump-tables", cl::Hidden, cl::init(false),
AdjustJumpTableBlocks("arm-adjust-jump-tables", cl::Hidden, cl::init(true),
cl::desc("Adjust basic block layout to better use TB[BH]"));
namespace {

2
test/CodeGen/Thumb2/thumb2-jtb.ll
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@ -1,4 +1,4 @@
; RUN: llc < %s -march=thumb -mattr=+thumb2 | not grep tbb
; RUN: llc < %s -march=thumb -mattr=+thumb2 -arm-adjust-jump-tables=0 | not grep tbb
; Do not use tbb / tbh if any destination is before the jumptable.
; rdar://7102917

1
test/CodeGen/Thumb2/thumb2-tbh.ll
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@ -1,7 +1,6 @@
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -relocation-model=pic | FileCheck %s
; Thumb2 target should reorder the bb's in order to use tbb / tbh.
; XFAIL: *
%struct.R_flstr = type { i32, i32, i8* }
%struct._T_tstr = type { i32, %struct.R_flstr*, %struct._T_tstr* }