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llvm-project/llvm/test/CodeGen/PowerPC/2010-02-04-EmptyGlobal.ll

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An empty global constant (one of size 0) may have a section immediately following it. However, the EmitGlobalConstant method wasn't emitting a body for the constant. The assembler doesn't like that. Before, we were generating this: .zerofill __DATA, __common, __cmd, 1, 3 This fix puts us back to that semantic. llvm-svn: 95336
2010-02-05 08:17:02 +08:00
; RUN: llc < %s -mtriple=powerpc-apple-darwin10 -relocation-model=pic -disable-fp-elim | FileCheck %s
; <rdar://problem/7604010>
Make test more fucused eliminating extraneous bits. llvm-svn: 95384
2010-02-05 19:21:05 +08:00
%cmd.type = type { }
An empty global constant (one of size 0) may have a section immediately following it. However, the EmitGlobalConstant method wasn't emitting a body for the constant. The assembler doesn't like that. Before, we were generating this: .zerofill __DATA, __common, __cmd, 1, 3 This fix puts us back to that semantic. llvm-svn: 95336
2010-02-05 08:17:02 +08:00
Make test more fucused eliminating extraneous bits. llvm-svn: 95384
2010-02-05 19:21:05 +08:00
@_cmd = constant %cmd.type zeroinitializer
An empty global constant (one of size 0) may have a section immediately following it. However, the EmitGlobalConstant method wasn't emitting a body for the constant. The assembler doesn't like that. Before, we were generating this: .zerofill __DATA, __common, __cmd, 1, 3 This fix puts us back to that semantic. llvm-svn: 95336
2010-02-05 08:17:02 +08:00
Make test more fucused eliminating extraneous bits. llvm-svn: 95384
2010-02-05 19:21:05 +08:00
; CHECK: .globl __cmd
[MC] Use .p2align instead of .align For historic reasons, the behavior of .align differs between targets. Fortunately, there are alternatives, .p2align and .balign, which make the interpretation of the parameter explicit, and which behave consistently across targets. This patch teaches MC to use .p2align instead of .align, so that people reading code for multiple architectures don't have to remember which way each platform does its .align directive. Differential Revision: http://reviews.llvm.org/D16549 llvm-svn: 258750
2016-01-26 08:03:25 +08:00
; CHECK-NEXT: .p2align 3
Make test more fucused eliminating extraneous bits. llvm-svn: 95384
2010-02-05 19:21:05 +08:00
; CHECK-NEXT: __cmd:
Bill's change in r95336 broke empty aggregates embedded in other types. fix this by only bumping zero-byte globals up to a single byte if the *entire global* is zero size, fixing PR6340. This also fixes empty arrays etc to be handled correctly, and only does this on subsection-via-symbols targets (aka darwin) which is the only place where this matters. llvm-svn: 101879
2010-04-20 14:20:21 +08:00
; CHECK-NEXT: .byte 0
; PR6340
%Ty = type { i32, {}, i32 }
@k = global %Ty { i32 1, {} zeroinitializer, i32 3 }
; CHECK: _k:
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long 3