derek.holloway
7502bf64a4
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68 lines
2.3 KiB
LLVM
68 lines
2.3 KiB
LLVM
; RUN: llc -global-isel=0 -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -check-prefixes=CHECK,WAVE64 %s
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; RUN: llc -global-isel=1 -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -check-prefixes=CHECK,WAVE64 %s
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; RUN: llc -global-isel=0 -mtriple=amdgcn -mcpu=gfx1010 < %s | FileCheck -check-prefixes=CHECK,WAVE32 %s
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; RUN: llc -global-isel=1 -mtriple=amdgcn -mcpu=gfx1010 < %s | FileCheck -check-prefixes=CHECK,WAVE32 %s
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; RUN: llc -global-isel=0 -mtriple=amdgcn -mcpu=gfx1100 < %s | FileCheck -check-prefixes=CHECK,WAVE32 %s
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; RUN: llc -global-isel=1 -mtriple=amdgcn -mcpu=gfx1100 < %s | FileCheck -check-prefixes=CHECK,WAVE32 %s
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;CHECK-LABEL: {{^}}ret:
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;CHECK: v_cmp_eq_u32_e32 [[CMP:[^,]+]], v0, v1
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;WAVE64: s_wqm_b64 [[WQM:[^,]+]], [[CMP]]
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;WAVE32: s_wqm_b32 [[WQM:[^,]+]], [[CMP]]
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;CHECK: v_cndmask_b32_e64 v0, 0, 1.0, [[WQM]]
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define amdgpu_ps float @ret(i32 %v0, i32 %v1) #1 {
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main_body:
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%c = icmp eq i32 %v0, %v1
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%w = call i1 @llvm.amdgcn.wqm.vote(i1 %c)
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%r = select i1 %w, float 1.0, float 0.0
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ret float %r
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}
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;CHECK-LABEL: {{^}}true:
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;WAVE64: s_wqm_b64
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;WAVE32: s_wqm_b32
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define amdgpu_ps float @true() #1 {
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main_body:
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%w = call i1 @llvm.amdgcn.wqm.vote(i1 true)
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%r = select i1 %w, float 1.0, float 0.0
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ret float %r
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}
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;CHECK-LABEL: {{^}}false:
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;WAVE64: s_wqm_b64
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;WAVE32: s_wqm_b32
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define amdgpu_ps float @false() #1 {
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main_body:
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%w = call i1 @llvm.amdgcn.wqm.vote(i1 false)
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%r = select i1 %w, float 1.0, float 0.0
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ret float %r
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}
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; Note: an almost identical test for this exists in llvm.amdgcn.kill.ll
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;CHECK-LABEL: {{^}}kill:
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;CHECK: v_cmp_eq_u32_e32 [[CMP:[^,]+]], v0, v1
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;WAVE64: s_wqm_b64 [[WQM:[^,]+]], [[CMP]]
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;WAVE64: s_andn2_b64 [[KILL:[^,]+]], exec, [[WQM]]
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;WAVE64: s_andn2_b64 [[MASK:[^,]+]], [[EXEC:[^,]+]], [[KILL]]
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;WAVE64: s_and_b64 exec, exec, [[MASK]]
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;WAVE32: s_wqm_b32 [[WQM:[^,]+]], [[CMP]]
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;WAVE32: s_and{{n2|_not1}}_b32 [[KILL:[^,]+]], exec_lo, [[WQM]]
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;WAVE32: s_and{{n2|_not1}}_b32 [[MASK:[^,]+]], [[EXEC:[^,]+]], [[KILL]]
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;WAVE32: s_and_b32 exec_lo, exec_lo, [[MASK]]
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;CHECK: s_endpgm
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define amdgpu_ps float @kill(i32 %v0, i32 %v1) #1 {
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main_body:
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%c = icmp eq i32 %v0, %v1
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%w = call i1 @llvm.amdgcn.wqm.vote(i1 %c)
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call void @llvm.amdgcn.kill(i1 %w)
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ret float 0.0
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}
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declare void @llvm.amdgcn.kill(i1) #1
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declare i1 @llvm.amdgcn.wqm.vote(i1)
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attributes #1 = { nounwind }
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