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b0a5225e6f
When performing a dynamic stack adjustment without optimisations, we would mark SP as def and R4 as kill. This occurred as part of the expansion of a WIN__CHKSTK SDNode which indicated the proper handling of SP and R4. The result would be that we would double define SP as part of an operation, which is obviously incorrect. Furthermore, the VTList for the chain had an incorrect parameter type of i32 instead of Other. Correct these to permit proper lowering of __builtin_alloca at -O0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213442 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
597 B
LLVM
23 lines
597 B
LLVM
; RUN: llc -O0 -mtriple thumbv7-windows-itanium -filetype asm -o - %s | FileCheck %s
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declare arm_aapcs_vfpcc i32 @num_entries()
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define arm_aapcs_vfpcc void @test___builtin_alloca() {
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entry:
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%array = alloca i8*, align 4
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%call = call arm_aapcs_vfpcc i32 @num_entries()
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%mul = mul i32 4, %call
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%0 = alloca i8, i32 %mul
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store i8* %0, i8** %array, align 4
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ret void
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}
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; CHECK: bl num_entries
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; CHECK: movs [[R1:r[0-9]+]], #7
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; CHECK: add.w [[R0:r[0-9]+]], [[R1]], [[R0]], lsl #2
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; CHECK: bic [[R0]], [[R0]], #7
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; CHECK: lsrs r4, [[R0]], #2
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; CHECK: bl __chkstk
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; CHECK: sub.w sp, sp, r4
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