mirror of
https://github.com/c64scene-ar/llvm-6502.git
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305228cc0b
This fixes it for SI. It also removes the pattern used previously for Evergreen for f32. I'm not sure if the the new R600 output is better or not, but it uses 1 fewer instructions if BFI is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226682 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.3 KiB
LLVM
75 lines
2.3 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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; FUNC-LABEL: {{^}}round_f64:
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; SI: s_endpgm
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define void @round_f64(double addrspace(1)* %out, double %x) #0 {
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%result = call double @llvm.round.f64(double %x) #1
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store double %result, double addrspace(1)* %out
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ret void
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}
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; This is a pretty large function, so just test a few of the
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; instructions that are necessary.
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; FUNC-LABEL: {{^}}v_round_f64:
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; SI: buffer_load_dwordx2
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; SI: v_bfe_u32 [[EXP:v[0-9]+]], v{{[0-9]+}}, 20, 11
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; SI: v_not_b32_e32
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; SI: v_not_b32_e32
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; SI: v_cmp_eq_i32
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; SI: s_mov_b32 [[BFIMASK:s[0-9]+]], 0x7fffffff
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; SI: v_bfi_b32 [[COPYSIGN:v[0-9]+]], [[BFIMASK]]
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; SI: v_cmp_lt_i32_e64
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; SI: v_cmp_gt_i32_e64
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; SI: buffer_store_dwordx2
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; SI: s_endpgm
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define void @v_round_f64(double addrspace(1)* %out, double addrspace(1)* %in) #0 {
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%tid = call i32 @llvm.r600.read.tidig.x() #1
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%gep = getelementptr double addrspace(1)* %in, i32 %tid
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%out.gep = getelementptr double addrspace(1)* %out, i32 %tid
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%x = load double addrspace(1)* %gep
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%result = call double @llvm.round.f64(double %x) #1
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store double %result, double addrspace(1)* %out.gep
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ret void
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}
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; FUNC-LABEL: {{^}}round_v2f64:
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; SI: s_endpgm
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define void @round_v2f64(<2 x double> addrspace(1)* %out, <2 x double> %in) #0 {
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%result = call <2 x double> @llvm.round.v2f64(<2 x double> %in) #1
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store <2 x double> %result, <2 x double> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}round_v4f64:
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; SI: s_endpgm
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define void @round_v4f64(<4 x double> addrspace(1)* %out, <4 x double> %in) #0 {
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%result = call <4 x double> @llvm.round.v4f64(<4 x double> %in) #1
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store <4 x double> %result, <4 x double> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}round_v8f64:
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; SI: s_endpgm
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define void @round_v8f64(<8 x double> addrspace(1)* %out, <8 x double> %in) #0 {
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%result = call <8 x double> @llvm.round.v8f64(<8 x double> %in) #1
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store <8 x double> %result, <8 x double> addrspace(1)* %out
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ret void
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}
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declare i32 @llvm.r600.read.tidig.x() #1
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declare double @llvm.round.f64(double) #1
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declare <2 x double> @llvm.round.v2f64(<2 x double>) #1
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declare <4 x double> @llvm.round.v4f64(<4 x double>) #1
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declare <8 x double> @llvm.round.v8f64(<8 x double>) #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone }
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