fdde69aac9
The unfortunate split between finalizeLowering and the selector pass means there's a point where the verifier fails. The DAG selector pass skips the verifier, but this seems to not work when using the GlobalISel fallback.
29 lines
1.6 KiB
LLVM
29 lines
1.6 KiB
LLVM
; RUN: not llc -global-isel -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -global-isel-abort=2 -pass-remarks-missed="gisel.*" -verify-machineinstrs -o /dev/null 2>&1 %s | FileCheck -check-prefix=ERR %s
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; ERR: remark: <unknown>:0:0: cannot select: %{{[0-9]+}}:sreg_32(p5) = G_DYN_STACKALLOC %{{[0-9]+}}:vgpr(s32), 1 (in function: kernel_dynamic_stackalloc_vgpr_align4)
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; ERR-NEXT: warning: Instruction selection used fallback path for kernel_dynamic_stackalloc_vgpr_align4
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; ERR-NEXT: error: <unknown>:0:0: in function kernel_dynamic_stackalloc_vgpr_align4 void (i32 addrspace(1)*): unsupported dynamic alloca
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; ERR: remark: <unknown>:0:0: cannot select: %{{[0-9]+}}:sreg_32(p5) = G_DYN_STACKALLOC %{{[0-9]+}}:vgpr(s32), 1 (in function: func_dynamic_stackalloc_vgpr_align4)
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; ERR-NEXT: warning: Instruction selection used fallback path for func_dynamic_stackalloc_vgpr_align4
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; ERR-NEXT: error: <unknown>:0:0: in function func_dynamic_stackalloc_vgpr_align4 void (i32): unsupported dynamic alloca
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define amdgpu_kernel void @kernel_dynamic_stackalloc_vgpr_align4(i32 addrspace(1)* %ptr) {
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%id = call i32 @llvm.amdgcn.workitem.id.x()
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%gep = getelementptr i32, i32 addrspace(1)* %ptr, i32 %id
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%n = load i32, i32 addrspace(1)* %gep
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%alloca = alloca i32, i32 %n, align 4, addrspace(5)
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store volatile i32 addrspace(5)* %alloca, i32 addrspace(5)* addrspace(1)* undef
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ret void
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}
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define void @func_dynamic_stackalloc_vgpr_align4(i32 %n) {
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%alloca = alloca i32, i32 %n, align 4, addrspace(5)
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store volatile i32 addrspace(5)* %alloca, i32 addrspace(5)* addrspace(1)* undef
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x() #0
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attributes #0 = { nounwind readnone speculatable }
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