187 lines
7.6 KiB
LLVM
187 lines
7.6 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
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; Test that add/sub with a constant is swapped to sub/add with negated
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; constant to minimize code size.
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; GCN-LABEL: {{^}}v_test_i32_x_sub_64:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_subrev_i32_e32 v{{[0-9]+}}, vcc, 64, [[X]]
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define void @v_test_i32_x_sub_64(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 %x, 64
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_x_sub_64_multi_use:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: {{buffer|flat}}_load_dword [[Y:v[0-9]+]]
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; GCN-DAG: v_subrev_i32_e32 v{{[0-9]+}}, vcc, 64, [[X]]
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; GCN-DAG: v_subrev_i32_e32 v{{[0-9]+}}, vcc, 64, [[Y]]
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define void @v_test_i32_x_sub_64_multi_use(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load volatile i32, i32 addrspace(1)* %gep
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%y = load volatile i32, i32 addrspace(1)* %gep
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%result0 = sub i32 %x, 64
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%result1 = sub i32 %y, 64
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store volatile i32 %result0, i32 addrspace(1)* %gep.out
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store volatile i32 %result1, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_64_sub_x:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_sub_i32_e32 v{{[0-9]+}}, vcc, 64, [[X]]
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define void @v_test_i32_64_sub_x(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 64, %x
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_x_sub_65:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_add_i32_e32 v{{[0-9]+}}, vcc, 0xffffffbf, [[X]]
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define void @v_test_i32_x_sub_65(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 %x, 65
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_65_sub_x:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_sub_i32_e32 v{{[0-9]+}}, vcc, 0x41, [[X]]
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define void @v_test_i32_65_sub_x(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 65, %x
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_x_sub_neg16:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_add_i32_e32 v{{[0-9]+}}, vcc, 16, [[X]]
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define void @v_test_i32_x_sub_neg16(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 %x, -16
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_neg16_sub_x:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_sub_i32_e32 v{{[0-9]+}}, vcc, -16, [[X]]
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define void @v_test_i32_neg16_sub_x(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 -16, %x
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_x_sub_neg17:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_add_i32_e32 v{{[0-9]+}}, vcc, 17, [[X]]
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define void @v_test_i32_x_sub_neg17(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 %x, -17
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i32_neg17_sub_x:
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; GCN: {{buffer|flat}}_load_dword [[X:v[0-9]+]]
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; GCN: v_sub_i32_e32 v{{[0-9]+}}, vcc, 0xffffffef, [[X]]
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define void @v_test_i32_neg17_sub_x(i32 addrspace(1)* %out, i32 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i32, i32 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %tid.ext
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%x = load i32, i32 addrspace(1)* %gep
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%result = sub i32 -17, %x
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store i32 %result, i32 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}s_test_i32_x_sub_64:
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; GCN: s_load_dword [[X:s[0-9]+]]
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; GCN: s_sub_i32 s{{[0-9]+}}, [[X]], 64
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define void @s_test_i32_x_sub_64(i32 %x) #0 {
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%result = sub i32 %x, 64
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call void asm sideeffect "; use $0", "s"(i32 %result)
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i16_x_sub_64:
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; VI: {{buffer|flat}}_load_ushort [[X:v[0-9]+]]
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; VI: v_subrev_u16_e32 v{{[0-9]+}}, 64, [[X]]
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define void @v_test_i16_x_sub_64(i16 addrspace(1)* %out, i16 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i16, i16 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i16, i16 addrspace(1)* %out, i64 %tid.ext
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%x = load i16, i16 addrspace(1)* %gep
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%result = sub i16 %x, 64
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store i16 %result, i16 addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}v_test_i16_x_sub_64_multi_use:
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; GCN: {{buffer|flat}}_load_ushort [[X:v[0-9]+]]
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; GCN: {{buffer|flat}}_load_ushort [[Y:v[0-9]+]]
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; VI-DAG: v_subrev_u16_e32 v{{[0-9]+}}, 64, [[X]]
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; VI-DAG: v_subrev_u16_e32 v{{[0-9]+}}, 64, [[Y]]
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; SI-DAG: v_subrev_i32_e32 v{{[0-9]+}}, vcc, 64, [[X]]
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; SI-DAG: v_subrev_i32_e32 v{{[0-9]+}}, vcc, 64, [[Y]]
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define void @v_test_i16_x_sub_64_multi_use(i16 addrspace(1)* %out, i16 addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep = getelementptr inbounds i16, i16 addrspace(1)* %in, i64 %tid.ext
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%gep.out = getelementptr inbounds i16, i16 addrspace(1)* %out, i64 %tid.ext
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%x = load volatile i16, i16 addrspace(1)* %gep
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%y = load volatile i16, i16 addrspace(1)* %gep
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%result0 = sub i16 %x, 64
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%result1 = sub i16 %y, 64
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store volatile i16 %result0, i16 addrspace(1)* %gep.out
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store volatile i16 %result1, i16 addrspace(1)* %gep.out
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x() #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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