78ec2e2ed5
Byval arguments which are passed partially in registers get stored into the local stack frame, but it is valid to tail-call them because the part which gets spilled is always re-loaded into registers before doing the tail-call, so it's OK for the spill area to be deallocated.
28 lines
655 B
LLVM
28 lines
655 B
LLVM
;PR15293: ARM codegen ice - expected larger existing stack allocation
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;RUN: llc -mtriple=arm-linux-gnueabihf < %s | FileCheck %s
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%struct.S227 = type { [49 x i32], i32 }
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define void @check227(
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i32 %b,
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ptr byval(%struct.S227) nocapture %arg0,
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ptr %arg1) {
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; b --> R0
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; arg0 --> [R1, R2, R3, SP+0 .. SP+188)
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; arg1 --> SP+188
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entry:
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; CHECK: sub sp, sp, #12
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; CHECK: stm sp, {r1, r2, r3}
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; CHECK: ldr r0, [sp, #200]
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; CHECK: add sp, sp, #12
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; CHECK: b useInt
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%0 = ptrtoint ptr %arg1 to i32
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tail call void @useInt(i32 %0)
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ret void
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}
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declare void @useInt(i32)
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