98d09705e1
This patch enables divergence predicates for min/max nodes. It makes ISD::MIN/MAX selected to S_MIN_I(U)32/S_MAX_I(U)32 or V_MIN_I(U)32_e64/V_MAX_I(U)32_e64 Reviewed By: rampitec Differential Revision: https://reviews.llvm.org/D115954
74 lines
2.3 KiB
LLVM
Executable File
74 lines
2.3 KiB
LLVM
Executable File
; RUN: llc -march=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -check-prefix=GCN %s
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; GCN-LABEL: name: uniform_imin
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; GCN: S_MIN_I32
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define amdgpu_kernel void @uniform_imin(i32 addrspace(1)* %out, i32 %a, i32 %b) #0 {
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%cmp = icmp sle i32 %a, %b
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%val = select i1 %cmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: name: divergent_imin
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; GCN: V_MIN_I32_e64
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define void @divergent_imin(i32 addrspace(1)* %out, i32 %a, i32 %b) #0 {
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%cmp = icmp sle i32 %a, %b
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%val = select i1 %cmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: name: uniform_umin
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; GCN: S_MIN_U32
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define amdgpu_kernel void @uniform_umin(i32 addrspace(1)* %out, i32 %a, i32 %b) #0 {
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%tmp = icmp ule i32 %a, %b
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%val = select i1 %tmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 8
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ret void
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}
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; GCN-LABEL: name: divergent_umin
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; GCN: V_MIN_U32_e64
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define void @divergent_umin(i32 addrspace(1)* %out, i32 %a, i32 %b) #0 {
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%tmp = icmp ule i32 %a, %b
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%val = select i1 %tmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 8
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ret void
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}
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; GCN-LABEL: name: uniform_imax
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; GCN: S_MAX_I32
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define amdgpu_kernel void @uniform_imax(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
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%cmp = icmp sge i32 %a, %b
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%val = select i1 %cmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: name: divergent_imax
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; GCN: V_MAX_I32_e64
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define void @divergent_imax(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
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%cmp = icmp sge i32 %a, %b
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%val = select i1 %cmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: name: uniform_umax
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; GCN: S_MAX_U32
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define amdgpu_kernel void @uniform_umax(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
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%cmp = icmp uge i32 %a, %b
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%val = select i1 %cmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: name: divergent_umax
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; GCN: V_MAX_U32_e64
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define void @divergent_umax(i32 addrspace(1)* %out, i32 %a, i32 %b) nounwind {
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%cmp = icmp uge i32 %a, %b
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%val = select i1 %cmp, i32 %a, i32 %b
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store i32 %val, i32 addrspace(1)* %out, align 4
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ret void
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}
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