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llvm/test/CodeGen/ARM/2013-06-03-ByVal-2Kbytes.ll

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PEI: Support for non-zero SPAdj at beginning of a basic block. We can have a FrameSetup in one basic block and the matching FrameDestroy in a different basic block when we have struct byval. In that case, SPAdj is not zero at beginning of the basic block. Modify PEI to correctly set SPAdj at beginning of each basic block using DFS traversal. We used to assume SPAdj is 0 at beginning of each basic block. PEI had an assert SPAdjCount || SPAdj == 0. If we have a Destroy <n> followed by a Setup <m>, PEI will assert failure. We can add an extra condition to make sure the pairs are matched: The pairs start with a FrameSetup. But since we are doing a much better job in the verifier, this patch removes the check in PEI. PR16393 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186364 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-15 23:47:29 +00:00
; RUN: llc < %s -mcpu=cortex-a15 | FileCheck %s
; ModuleID = 'attri_16.c'
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32-S64"
target triple = "armv4t--linux-gnueabihf"
%big_struct0 = type { [517 x i32] }
%big_struct1 = type { [516 x i32] }
Update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186594 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-18 18:35:22 +00:00
;CHECK-LABEL: f:
PEI: Support for non-zero SPAdj at beginning of a basic block. We can have a FrameSetup in one basic block and the matching FrameDestroy in a different basic block when we have struct byval. In that case, SPAdj is not zero at beginning of the basic block. Modify PEI to correctly set SPAdj at beginning of each basic block using DFS traversal. We used to assume SPAdj is 0 at beginning of each basic block. PEI had an assert SPAdjCount || SPAdj == 0. If we have a Destroy <n> followed by a Setup <m>, PEI will assert failure. We can add an extra condition to make sure the pairs are matched: The pairs start with a FrameSetup. But since we are doing a much better job in the verifier, this patch removes the check in PEI. PR16393 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186364 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-15 23:47:29 +00:00
define void @f(%big_struct0* %p0, %big_struct1* %p1) {
;CHECK: sub sp, sp, #8
;CHECK: sub sp, sp, #2048
;CHECK: bl callme0
call void @callme0(%big_struct0* byval %p0)
;CHECK: add sp, sp, #8
;CHECK: add sp, sp, #2048
;CHECK: sub sp, sp, #2048
;CHECK: bl callme1
call void @callme1(%big_struct1* byval %p1)
;CHECK: add sp, sp, #2048
ret void
}
declare void @callme0(%big_struct0* byval)
declare void @callme1(%big_struct1* byval)
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