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36 lines
1.5 KiB
LLVM
36 lines
1.5 KiB
LLVM
;RUN: llc < %s -march=amdgcn -mcpu=verde -mattr=+vgpr-spilling -mattr=-promote-alloca -verify-machineinstrs | FileCheck %s -check-prefix=CHECK
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;RUN: llc < %s -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -mattr=+vgpr-spilling -mattr=-promote-alloca -verify-machineinstrs | FileCheck %s -check-prefix=CHECK
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; Allocate two stack slots of 2052 bytes each requiring a total of 4104 bytes.
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; Extracting the last element of each does not fit into the offset field of
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; MUBUF instructions, so a new base register is needed. This used to not
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; happen, leading to an assertion.
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; CHECK-LABEL: {{^}}main:
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; CHECK: buffer_store_dword
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; CHECK: buffer_store_dword
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; CHECK: buffer_load_dword
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; CHECK: buffer_load_dword
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define amdgpu_gs float @main(float %v1, float %v2, i32 %idx1, i32 %idx2) {
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main_body:
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%m1 = alloca [513 x float]
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%m2 = alloca [513 x float]
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%gep1.store = getelementptr [513 x float], [513 x float]* %m1, i32 0, i32 %idx1
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store float %v1, float* %gep1.store
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%gep2.store = getelementptr [513 x float], [513 x float]* %m2, i32 0, i32 %idx2
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store float %v2, float* %gep2.store
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; This used to use a base reg equal to 0.
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%gep1.load = getelementptr [513 x float], [513 x float]* %m1, i32 0, i32 0
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%out1 = load float, float* %gep1.load
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; This used to attempt to re-use the base reg at 0, generating an out-of-bounds instruction offset.
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%gep2.load = getelementptr [513 x float], [513 x float]* %m2, i32 0, i32 512
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%out2 = load float, float* %gep2.load
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%r = fadd float %out1, %out2
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ret float %r
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}
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