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3b659043e4
This is the first of a series of patches that adds caller support for by-value arguments. This patch add support for arguments that are passed in a single GPR. There are 3 limitation cases: -The by-value argument is larger than a single register. -There are no remaining GPRs even though the by-value argument would otherwise fit in a single GPR. -The by-value argument requires alignment greater than register width. Future patches will be required to add support for these cases as well as for the callee handling (in LowerFormalArguments_AIX) that corresponds to this work. Differential Revision: https://reviews.llvm.org/D75863
17 lines
633 B
LLVM
17 lines
633 B
LLVM
; RUN: not --crash llc -mtriple powerpc-ibm-aix-xcoff < %s 2>&1 | FileCheck %s
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; RUN: not --crash llc -mtriple powerpc64-ibm-aix-xcoff < %s 2>&1 | FileCheck %s
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%struct.S = type { [1 x i8] }
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define void @bar() {
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entry:
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%s1 = alloca %struct.S, align 32
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%agg.tmp = alloca %struct.S, align 32
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call void @foo(i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, %struct.S* byval(%struct.S) align 32 %agg.tmp)
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ret void
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}
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declare void @foo(i32, i32, i32, i32, i32, i32, i32, i32, %struct.S* byval(%struct.S) align 32)
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; CHECK: LLVM ERROR: Pass-by-value arguments with alignment greater than register width are not supported.
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