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https://github.com/c64scene-ar/llvm-6502.git
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519127f758
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
31 lines
778 B
LLVM
31 lines
778 B
LLVM
; RUN: llc < %s -mcpu=cortex-a15 | FileCheck %s
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; ModuleID = 'attri_16.c'
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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"
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target triple = "armv4t--linux-gnueabihf"
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%big_struct0 = type { [517 x i32] }
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%big_struct1 = type { [516 x i32] }
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;CHECK: f:
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define void @f(%big_struct0* %p0, %big_struct1* %p1) {
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;CHECK: sub sp, sp, #8
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;CHECK: sub sp, sp, #2048
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;CHECK: bl callme0
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call void @callme0(%big_struct0* byval %p0)
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;CHECK: add sp, sp, #8
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;CHECK: add sp, sp, #2048
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;CHECK: sub sp, sp, #2048
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;CHECK: bl callme1
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call void @callme1(%big_struct1* byval %p1)
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;CHECK: add sp, sp, #2048
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ret void
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}
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declare void @callme0(%big_struct0* byval)
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declare void @callme1(%big_struct1* byval)
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