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R600/SI: Add combine for isinfinite pattern

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225310 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2015-01-06 23:00:46 +00:00
parent fe63e38cb5
commit 6a72b20325
3 changed files with 142 additions and 0 deletions
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85
test/CodeGen/R600/fp-classify.ll
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@@ -41,5 +41,90 @@ define void @test_not_isinf_pattern_1(i32 addrspace(1)* nocapture %out, float %x
ret void
}
; SI-LABEL: {{^}}test_isfinite_pattern_0:
; SI-NOT: v_cmp
; SI: v_mov_b32_e32 [[MASK:v[0-9]+]], 0x1f8{{$}}
; SI: v_cmp_class_f32_e32 vcc, s{{[0-9]+}}, [[MASK]]
; SI-NOT: v_cmp
; SI: s_endpgm
define void @test_isfinite_pattern_0(i32 addrspace(1)* nocapture %out, float %x) #0 {
%ord = fcmp ord float %x, 0.000000e+00
%x.fabs = tail call float @llvm.fabs.f32(float %x) #1
%ninf = fcmp une float %x.fabs, 0x7FF0000000000000
%and = and i1 %ord, %ninf
%ext = zext i1 %and to i32
store i32 %ext, i32 addrspace(1)* %out, align 4
ret void
}
; Use negative infinity
; SI-LABEL: {{^}}test_isfinite_not_pattern_0:
; SI-NOT: v_cmp_class_f32
; SI: s_endpgm
define void @test_isfinite_not_pattern_0(i32 addrspace(1)* nocapture %out, float %x) #0 {
%ord = fcmp ord float %x, 0.000000e+00
%x.fabs = tail call float @llvm.fabs.f32(float %x) #1
%ninf = fcmp une float %x.fabs, 0xFFF0000000000000
%and = and i1 %ord, %ninf
%ext = zext i1 %and to i32
store i32 %ext, i32 addrspace(1)* %out, align 4
ret void
}
; No fabs
; SI-LABEL: {{^}}test_isfinite_not_pattern_1:
; SI-NOT: v_cmp_class_f32
; SI: s_endpgm
define void @test_isfinite_not_pattern_1(i32 addrspace(1)* nocapture %out, float %x) #0 {
%ord = fcmp ord float %x, 0.000000e+00
%ninf = fcmp une float %x, 0x7FF0000000000000
%and = and i1 %ord, %ninf
%ext = zext i1 %and to i32
store i32 %ext, i32 addrspace(1)* %out, align 4
ret void
}
; fabs of different value
; SI-LABEL: {{^}}test_isfinite_not_pattern_2:
; SI-NOT: v_cmp_class_f32
; SI: s_endpgm
define void @test_isfinite_not_pattern_2(i32 addrspace(1)* nocapture %out, float %x, float %y) #0 {
%ord = fcmp ord float %x, 0.000000e+00
%x.fabs = tail call float @llvm.fabs.f32(float %y) #1
%ninf = fcmp une float %x.fabs, 0x7FF0000000000000
%and = and i1 %ord, %ninf
%ext = zext i1 %and to i32
store i32 %ext, i32 addrspace(1)* %out, align 4
ret void
}
; Wrong ordered compare type
; SI-LABEL: {{^}}test_isfinite_not_pattern_3:
; SI-NOT: v_cmp_class_f32
; SI: s_endpgm
define void @test_isfinite_not_pattern_3(i32 addrspace(1)* nocapture %out, float %x) #0 {
%ord = fcmp uno float %x, 0.000000e+00
%x.fabs = tail call float @llvm.fabs.f32(float %x) #1
%ninf = fcmp une float %x.fabs, 0x7FF0000000000000
%and = and i1 %ord, %ninf
%ext = zext i1 %and to i32
store i32 %ext, i32 addrspace(1)* %out, align 4
ret void
}
; Wrong unordered compare
; SI-LABEL: {{^}}test_isfinite_not_pattern_4:
; SI-NOT: v_cmp_class_f32
; SI: s_endpgm
define void @test_isfinite_not_pattern_4(i32 addrspace(1)* nocapture %out, float %x) #0 {
%ord = fcmp ord float %x, 0.000000e+00
%x.fabs = tail call float @llvm.fabs.f32(float %x) #1
%ninf = fcmp one float %x.fabs, 0x7FF0000000000000
%and = and i1 %ord, %ninf
%ext = zext i1 %and to i32
store i32 %ext, i32 addrspace(1)* %out, align 4
ret void
}
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }