llvm-6502/test/CodeGen/ARM/global-merge.ll

; RUN: llc < %s -mtriple=thumb-apple-darwin | FileCheck %s
; Test the ARMGlobalMerge pass.  Use -march=thumb because it has a small
; value for the maximum offset (127).

; A local array that exceeds the maximum offset should not be merged.
; CHECK: g0:
@g0 = internal global [32 x i32] [ i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2 ]

; CHECK: _MergedGlobals:
@g1 = internal global i32 1
@g2 = internal global i32 2

; Make sure that the complete variable fits within the range of the maximum
; offset.  Having the starting offset in range is not sufficient.
; When this works properly, @g3 is placed in a separate chunk of merged globals.
; CHECK: _MergedGlobals1:
@g3 = internal global [30 x i32] [ i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10 ]

; Global variables that can be placed in BSS should be kept together in a
; separate pool of merged globals.
; CHECK: _MergedGlobals2
@g4 = internal global i32 0
@g5 = internal global i32 0
Change ARMGlobalMerge to keep BSS globals in separate pools. This completes the fixes for Radar 8673120. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119566 91177308-0d34-0410-b5e6-96231b3b80d8 2010-11-17 21:25:39 +00:00			`; RUN: llc < %s -mtriple=thumb-apple-darwin \| FileCheck %s`
Fix the ARMGlobalMerge pass to look at variable sizes instead of pointer sizes. It was mistakenly looking at the pointer type when checking for the size of global variables. This is a partial fix for Radar 8673120. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119563 91177308-0d34-0410-b5e6-96231b3b80d8 2010-11-17 21:25:27 +00:00			`; Test the ARMGlobalMerge pass. Use -march=thumb because it has a small`
			`; value for the maximum offset (127).`

			`; A local array that exceeds the maximum offset should not be merged.`
			`; CHECK: g0:`
			`@g0 = internal global [32 x i32] [ i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2 ]`

Change the symbol for merged globals from "merged" to "_MergedGlobals". This makes it more clear that the symbol is an internal, compiler-generated name and gives a little more description about its contents. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119564 91177308-0d34-0410-b5e6-96231b3b80d8 2010-11-17 21:25:33 +00:00			`; CHECK: _MergedGlobals:`
Fix the ARMGlobalMerge pass to look at variable sizes instead of pointer sizes. It was mistakenly looking at the pointer type when checking for the size of global variables. This is a partial fix for Radar 8673120. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119563 91177308-0d34-0410-b5e6-96231b3b80d8 2010-11-17 21:25:27 +00:00			`@g1 = internal global i32 1`
			`@g2 = internal global i32 2`
Fix ARMGlobalMerge pass to check if globals are entirely within range. It is generally not sufficient to check if the starting offset is in range of the maximum offset that can be efficiently used for the target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119565 91177308-0d34-0410-b5e6-96231b3b80d8 2010-11-17 21:25:36 +00:00
			`; Make sure that the complete variable fits within the range of the maximum`
			`; offset. Having the starting offset in range is not sufficient.`
			`; When this works properly, @g3 is placed in a separate chunk of merged globals.`
			`; CHECK: _MergedGlobals1:`
			`@g3 = internal global [30 x i32] [ i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10 ]`
Change ARMGlobalMerge to keep BSS globals in separate pools. This completes the fixes for Radar 8673120. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119566 91177308-0d34-0410-b5e6-96231b3b80d8 2010-11-17 21:25:39 +00:00
			`; Global variables that can be placed in BSS should be kept together in a`
			`; separate pool of merged globals.`
			`; CHECK: _MergedGlobals2`
			`@g4 = internal global i32 0`
			`@g5 = internal global i32 0`