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https://github.com/RPCS3/llvm-mirror.git
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b39d75fbb0
Update SIFoldOperands pass to recognize v_add_f64 and v_mul_f64 instructions for folding output modifiers. Differential Revision: https://reviews.llvm.org/D99505
392 lines
15 KiB
LLVM
392 lines
15 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck --check-prefixes=GCN,VI %s
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; IEEE bit enabled for compute kernel, so shouldn't use.
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; GCN-LABEL: {{^}}v_omod_div2_f32_enable_ieee_signed_zeros:
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; GCN: {{buffer|flat}}_load_dword [[A:v[0-9]+]]
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, [[A]]{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_kernel void @v_omod_div2_f32_enable_ieee_signed_zeros(float addrspace(1)* %out, float addrspace(1)* %aptr) #4 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%gep0 = getelementptr float, float addrspace(1)* %aptr, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %gep0
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 0.5
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store float %div2, float addrspace(1)* %out.gep
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ret void
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}
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; IEEE bit enabled for compute kernel, so shouldn't use.
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; GCN-LABEL: {{^}}v_omod_div2_f64_enable_ieee_signed_zeros:
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; GCN: {{buffer|flat}}_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]]
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; GCN: v_add_f64 [[ADD:v\[[0-9]+:[0-9]+\]]], [[A]], 1.0{{$}}
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; GCN: v_mul_f64 v{{\[[0-9]+:[0-9]+\]}}, [[ADD]], 0.5{{$}}
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define amdgpu_kernel void @v_omod_div2_f64_enable_ieee_signed_zeros(double addrspace(1)* %out, double addrspace(1)* %aptr) #4 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%gep0 = getelementptr double, double addrspace(1)* %aptr, i32 %tid
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%out.gep = getelementptr double, double addrspace(1)* %out, i32 %tid
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%a = load double, double addrspace(1)* %gep0
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%add = fadd double %a, 1.0
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%div2 = fmul double %add, 0.5
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store double %div2, double addrspace(1)* %out.gep
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ret void
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}
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; IEEE bit enabled for compute kernel, so shouldn't use even though nsz is allowed
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; GCN-LABEL: {{^}}v_omod_div2_f32_enable_ieee_nsz:
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; GCN: {{buffer|flat}}_load_dword [[A:v[0-9]+]]
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, [[A]]{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_kernel void @v_omod_div2_f32_enable_ieee_nsz(float addrspace(1)* %out, float addrspace(1)* %aptr) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%gep0 = getelementptr float, float addrspace(1)* %aptr, i32 %tid
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%out.gep = getelementptr float, float addrspace(1)* %out, i32 %tid
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%a = load float, float addrspace(1)* %gep0
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 0.5
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store float %div2, float addrspace(1)* %out.gep
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ret void
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}
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; IEEE bit enabled for compute kernel, so shouldn't use even though nsz is allowed.
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; GCN-LABEL: {{^}}v_omod_div2_f64_enable_ieee_nsz:
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; GCN: {{buffer|flat}}_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]]
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; GCN: v_add_f64 [[ADD:v\[[0-9]+:[0-9]+\]]], [[A]], 1.0{{$}}
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; GCN: v_mul_f64 v{{\[[0-9]+:[0-9]+\]}}, [[ADD]], 0.5{{$}}
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define amdgpu_kernel void @v_omod_div2_f64_enable_ieee_nsz(double addrspace(1)* %out, double addrspace(1)* %aptr) #5 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%gep0 = getelementptr double, double addrspace(1)* %aptr, i32 %tid
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%out.gep = getelementptr double, double addrspace(1)* %out, i32 %tid
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%a = load double, double addrspace(1)* %gep0
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%add = fadd double %a, 1.0
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%div2 = fmul double %add, 0.5
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store double %div2, double addrspace(1)* %out.gep
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ret void
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}
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; Only allow without IEEE bit if signed zeros are significant.
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; GCN-LABEL: {{^}}v_omod_div2_f32_signed_zeros:
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_div2_f32_signed_zeros(float %a) #4 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 0.5
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; Only allow without IEEE bit if signed zeros are significant.
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; GCN-LABEL: {{^}}v_omod_div2_f64_signed_zeros:
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; GCN: v_add_f64 [[ADD:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, 1.0{{$}}
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; GCN: v_mul_f64 v{{\[[0-9]+:[0-9]+\]}}, [[ADD]], 0.5{{$}}
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define amdgpu_ps void @v_omod_div2_f64_signed_zeros(double %a) #4 {
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%add = fadd double %a, 1.0
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%div2 = fmul double %add, 0.5
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store double %div2, double addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_div2_f32:
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; GCN: v_add_f32_e64 v{{[0-9]+}}, v0, 1.0 div:2{{$}}
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define amdgpu_ps void @v_omod_div2_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 0.5
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_div2_f64:
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; GCN: v_add_f64 v{{\[[0-9]+:[0-9]+\]}}, v{{\[[0-9]+:[0-9]+\]}}, 1.0 div:2{{$}}
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define amdgpu_ps void @v_omod_div2_f64(double %a) #5 {
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%add = fadd nsz double %a, 1.0
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%div2 = fmul nsz double %add, 0.5
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store double %div2, double addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_mul2_f32:
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; GCN: v_add_f32_e64 v{{[0-9]+}}, v0, 1.0 mul:2{{$}}
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define amdgpu_ps void @v_omod_mul2_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 2.0
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_mul2_f64:
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; GCN: v_add_f64 v{{\[[0-9]+:[0-9]+\]}}, v{{\[[0-9]+:[0-9]+\]}}, 1.0 mul:2{{$}}
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define amdgpu_ps void @v_omod_mul2_f64(double %a) #5 {
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%add = fadd nsz double %a, 1.0
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%div2 = fmul nsz double %add, 2.0
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store double %div2, double addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_mul4_f32:
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; GCN: v_add_f32_e64 v{{[0-9]+}}, v0, 1.0 mul:4{{$}}
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define amdgpu_ps void @v_omod_mul4_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 4.0
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_mul4_f64:
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; GCN: v_add_f64 v{{\[[0-9]+:[0-9]+\]}}, v{{\[[0-9]+:[0-9]+\]}}, 1.0 mul:4{{$}}
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define amdgpu_ps void @v_omod_mul4_f64(double %a) #5 {
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%add = fadd nsz double %a, 1.0
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%div2 = fmul nsz double %add, 4.0
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store double %div2, double addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_mul4_multi_use_f32:
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 4.0, [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_mul4_multi_use_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 4.0
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store float %div2, float addrspace(1)* undef
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store volatile float %add, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_mul4_dbg_use_f32:
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; GCN: v_add_f32_e64 v{{[0-9]+}}, v0, 1.0 mul:4{{$}}
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define amdgpu_ps void @v_omod_mul4_dbg_use_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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call void @llvm.dbg.value(metadata float %add, i64 0, metadata !4, metadata !9), !dbg !10
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%div2 = fmul float %add, 4.0
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; Clamp is applied after omod, folding both into instruction is OK.
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; GCN-LABEL: {{^}}v_clamp_omod_div2_f32:
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; GCN: v_add_f32_e64 v{{[0-9]+}}, v0, 1.0 clamp div:2{{$}}
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define amdgpu_ps void @v_clamp_omod_div2_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 0.5
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%max = call float @llvm.maxnum.f32(float %div2, float 0.0)
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%clamp = call float @llvm.minnum.f32(float %max, float 1.0)
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store float %clamp, float addrspace(1)* undef
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ret void
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}
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; Cannot fold omod into clamp
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; GCN-LABEL: {{^}}v_omod_div2_clamp_f32:
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; GCN: v_add_f32_e64 [[ADD:v[0-9]+]], v0, 1.0 clamp{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_div2_clamp_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%max = call float @llvm.maxnum.f32(float %add, float 0.0)
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%clamp = call float @llvm.minnum.f32(float %max, float 1.0)
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%div2 = fmul float %clamp, 0.5
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_div2_abs_src_f32:
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; GCN: v_mul_f32_e64 v{{[0-9]+}}, |[[ADD]]|, 0.5{{$}}
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define amdgpu_ps void @v_omod_div2_abs_src_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%abs.add = call float @llvm.fabs.f32(float %add)
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%div2 = fmul float %abs.add, 0.5
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_add_self_clamp_f32:
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; GCN: v_add_f32_e64 v{{[0-9]+}}, v0, v0 clamp{{$}}
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define amdgpu_ps void @v_omod_add_self_clamp_f32(float %a) #0 {
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%add = fadd float %a, %a
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%max = call float @llvm.maxnum.f32(float %add, float 0.0)
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%clamp = call float @llvm.minnum.f32(float %max, float 1.0)
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store float %clamp, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_add_clamp_self_f32:
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; GCN: v_max_f32_e64 [[CLAMP:v[0-9]+]], v0, v0 clamp{{$}}
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; GCN: v_add_f32_e32 v{{[0-9]+}}, [[CLAMP]], [[CLAMP]]{{$}}
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define amdgpu_ps void @v_omod_add_clamp_self_f32(float %a) #0 {
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%max = call float @llvm.maxnum.f32(float %a, float 0.0)
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%clamp = call float @llvm.minnum.f32(float %max, float 1.0)
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%add = fadd float %clamp, %clamp
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store float %add, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_add_abs_self_f32:
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; GCN: v_add_f32_e32 [[X:v[0-9]+]], 1.0, v0
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; GCN: v_add_f32_e64 v{{[0-9]+}}, |[[X]]|, |[[X]]|{{$}}
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define amdgpu_ps void @v_omod_add_abs_self_f32(float %a) #0 {
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%x = fadd float %a, 1.0
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%abs.x = call float @llvm.fabs.f32(float %x)
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%add = fadd float %abs.x, %abs.x
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store float %add, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_add_abs_x_x_f32:
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; GCN: v_add_f32_e32 [[X:v[0-9]+]], 1.0, v0
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; GCN: v_add_f32_e64 v{{[0-9]+}}, |[[X]]|, [[X]]{{$}}
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define amdgpu_ps void @v_omod_add_abs_x_x_f32(float %a) #0 {
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%x = fadd float %a, 1.0
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%abs.x = call float @llvm.fabs.f32(float %x)
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%add = fadd float %abs.x, %x
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store float %add, float addrspace(1)* undef
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ret void
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}
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; GCN-LABEL: {{^}}v_omod_add_x_abs_x_f32:
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; GCN: v_add_f32_e32 [[X:v[0-9]+]], 1.0, v0
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; GCN: v_add_f32_e64 v{{[0-9]+}}, [[X]], |[[X]]|{{$}}
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define amdgpu_ps void @v_omod_add_x_abs_x_f32(float %a) #0 {
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%x = fadd float %a, 1.0
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%abs.x = call float @llvm.fabs.f32(float %x)
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%add = fadd float %x, %abs.x
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store float %add, float addrspace(1)* undef
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ret void
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}
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; Don't fold omod into omod into another omod.
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; GCN-LABEL: {{^}}v_omod_div2_omod_div2_f32:
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; GCN: v_add_f32_e64 [[ADD:v[0-9]+]], v0, 1.0 div:2{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_div2_omod_div2_f32(float %a) #0 {
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%add = fadd float %a, 1.0
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%div2.0 = fmul float %add, 0.5
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%div2.1 = fmul float %div2.0, 0.5
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store float %div2.1, float addrspace(1)* undef
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ret void
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}
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; Don't fold omod if denorms enabled
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; GCN-LABEL: {{^}}v_omod_div2_f32_denormals:
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; GCN: v_mul_f32_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_div2_f32_denormals(float %a) #2 {
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%add = fadd float %a, 1.0
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%div2 = fmul float %add, 0.5
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store float %div2, float addrspace(1)* undef
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ret void
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}
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; Don't fold omod if denorms enabled.
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; GCN-LABEL: {{^}}v_omod_div2_f64_denormals:
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; GCN: v_add_f64 [[ADD:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, 1.0{{$}}
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; GCN: v_mul_f64 v{{\[[0-9]+:[0-9]+\]}}, [[ADD]], 0.5{{$}}
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define amdgpu_ps void @v_omod_div2_f64_denormals(double %a) #6 {
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%add = fadd double %a, 1.0
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%div2 = fmul double %add, 0.5
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store double %div2, double addrspace(1)* undef
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ret void
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}
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; Don't fold omod if denorms enabled for add form.
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; GCN-LABEL: {{^}}v_omod_mul2_f32_denormals:
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; GCN: v_add_f32_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; GCN: v_add_f32_e32 v{{[0-9]+}}, [[ADD]], [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_mul2_f32_denormals(float %a) #2 {
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%add = fadd float %a, 1.0
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%mul2 = fadd float %add, %add
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store float %mul2, float addrspace(1)* undef
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ret void
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}
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; Don't fold omod if denorms enabled for add form.
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; GCN-LABEL: {{^}}v_omod_mul2_f64_denormals:
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; GCN: v_add_f64 [[ADD:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, 1.0{{$}}
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; GCN: v_add_f64 v{{\[[0-9]+:[0-9]+\]}}, [[ADD]], [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_mul2_f64_denormals(double %a) #2 {
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%add = fadd double %a, 1.0
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%mul2 = fadd double %add, %add
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store double %mul2, double addrspace(1)* undef
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ret void
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}
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; Don't fold omod if denorms enabled
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; GCN-LABEL: {{^}}v_omod_div2_f16_denormals:
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; VI: v_add_f16_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; VI: v_mul_f16_e32 v{{[0-9]+}}, 0.5, [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_div2_f16_denormals(half %a) #0 {
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%add = fadd half %a, 1.0
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%div2 = fmul half %add, 0.5
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store half %div2, half addrspace(1)* undef
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ret void
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}
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; Don't fold omod if denorms enabled for add form.
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; GCN-LABEL: {{^}}v_omod_mul2_f16_denormals:
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; VI: v_add_f16_e32 [[ADD:v[0-9]+]], 1.0, v0{{$}}
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; VI: v_add_f16_e32 v{{[0-9]+}}, [[ADD]], [[ADD]]{{$}}
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define amdgpu_ps void @v_omod_mul2_f16_denormals(half %a) #0 {
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%add = fadd half %a, 1.0
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%mul2 = fadd half %add, %add
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store half %mul2, half addrspace(1)* undef
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ret void
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}
|
|
|
|
; GCN-LABEL: {{^}}v_omod_div2_f16_no_denormals:
|
|
; VI-NOT: v0
|
|
; VI: v_add_f16_e64 [[ADD:v[0-9]+]], v0, 1.0 div:2{{$}}
|
|
define amdgpu_ps void @v_omod_div2_f16_no_denormals(half %a) #3 {
|
|
%add = fadd half %a, 1.0
|
|
%div2 = fmul half %add, 0.5
|
|
store half %div2, half addrspace(1)* undef
|
|
ret void
|
|
}
|
|
|
|
; GCN-LABEL: {{^}}v_omod_mac_to_mad:
|
|
; GCN: v_mad_f32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]}} mul:2{{$}}
|
|
define amdgpu_ps void @v_omod_mac_to_mad(float %b, float %a) #0 {
|
|
%mul = fmul float %a, %a
|
|
%add = fadd float %mul, %b
|
|
%mad = fmul float %add, 2.0
|
|
%res = fmul float %mad, %b
|
|
store float %res, float addrspace(1)* undef
|
|
ret void
|
|
}
|
|
|
|
declare i32 @llvm.amdgcn.workitem.id.x() #1
|
|
declare float @llvm.fabs.f32(float) #1
|
|
declare float @llvm.floor.f32(float) #1
|
|
declare float @llvm.minnum.f32(float, float) #1
|
|
declare float @llvm.maxnum.f32(float, float) #1
|
|
declare float @llvm.amdgcn.fmed3.f32(float, float, float) #1
|
|
declare double @llvm.fabs.f64(double) #1
|
|
declare double @llvm.minnum.f64(double, double) #1
|
|
declare double @llvm.maxnum.f64(double, double) #1
|
|
declare half @llvm.fabs.f16(half) #1
|
|
declare half @llvm.minnum.f16(half, half) #1
|
|
declare half @llvm.maxnum.f16(half, half) #1
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
|
|
|
|
attributes #0 = { nounwind "denormal-fp-math-f32"="preserve-sign,preserve-sign" "no-signed-zeros-fp-math"="true" }
|
|
attributes #1 = { nounwind readnone }
|
|
attributes #2 = { nounwind "denormal-fp-math-f32"="ieee,ieee" "no-signed-zeros-fp-math"="true" }
|
|
attributes #3 = { nounwind "denormal-fp-math"="preserve-sign,preserve-sign" "no-signed-zeros-fp-math"="true" }
|
|
attributes #4 = { nounwind "no-signed-zeros-fp-math"="false" }
|
|
attributes #5 = { nounwind "denormal-fp-math"="preserve-sign,preserve-sign" }
|
|
attributes #6 = { nounwind "denormal-fp-math"="ieee,ieee" "no-signed-zeros-fp-math"="true" }
|
|
|
|
!llvm.dbg.cu = !{!0}
|
|
!llvm.module.flags = !{!2, !3}
|
|
|
|
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug)
|
|
!1 = !DIFile(filename: "/tmp/foo.cl", directory: "/dev/null")
|
|
!2 = !{i32 2, !"Dwarf Version", i32 4}
|
|
!3 = !{i32 2, !"Debug Info Version", i32 3}
|
|
!4 = !DILocalVariable(name: "add", arg: 1, scope: !5, file: !1, line: 1)
|
|
!5 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
|
|
!6 = !DISubroutineType(types: !7)
|
|
!7 = !{null, !8}
|
|
!8 = !DIBasicType(name: "float", size: 32, align: 32)
|
|
!9 = !DIExpression()
|
|
!10 = !DILocation(line: 1, column: 42, scope: !5)
|