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[Reassociate] add tests with 'reassoc' FMF; NFC
llvm-svn: 318053
This commit is contained in:
Sanjay Patel
parent
ef07cc017a
commit
d6b8e8276a
@ -23,3 +23,18 @@ define float @test2(float %A) {
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ret float %r
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}
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; Check again using minimal subset of FMF.
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define float @test2_reassoc(float %A) {
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; CHECK-LABEL: @test2_reassoc(
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; CHECK-NEXT: [[X:%.*]] = fadd reassoc float %A, 1.000000e+00
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; CHECK-NEXT: [[Y:%.*]] = fadd reassoc float %A, 1.000000e+00
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; CHECK-NEXT: [[R:%.*]] = fsub reassoc float [[X]], [[Y]]
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; CHECK-NEXT: ret float [[R]]
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;
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%X = fadd reassoc float 1.000000e+00, %A
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%Y = fadd reassoc float 1.000000e+00, %A
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%r = fsub reassoc float %X, %Y
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ret float %r
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}
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@ -11,3 +11,18 @@ define float @test1(float %A, float %B) {
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ret float %Z
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}
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; Check again using minimal subset of FMF.
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define float @test1_reassoc(float %A, float %B) {
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; CHECK-LABEL: @test1_reassoc(
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; CHECK-NEXT: [[W:%.*]] = fadd reassoc float %B, -5.000000e+00
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; CHECK-NEXT: [[Y:%.*]] = fadd reassoc float %A, 5.000000e+00
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; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[Y]], [[W]]
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; CHECK-NEXT: ret float [[Z]]
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;
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%W = fadd reassoc float %B, -5.0
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%Y = fadd reassoc float %A, 5.0
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%Z = fadd reassoc float %W, %Y
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ret float %Z
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}
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@ -26,7 +26,23 @@ define float @test2(float %A, float %B) {
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%Y = fsub fast float %X, %W
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%Z = fadd fast float %Y, 1.200000e+01
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ret float %Z
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}
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; Check again using minimal subset of FMF.
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define float @test2_reassoc(float %A, float %B) {
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; CHECK-LABEL: @test2_reassoc(
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; CHECK-NEXT: [[W:%.*]] = fadd reassoc float %B, 5.000000e+00
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; CHECK-NEXT: [[X:%.*]] = fadd reassoc float %A, -7.000000e+00
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; CHECK-NEXT: [[Y:%.*]] = fsub reassoc float [[X]], [[W]]
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; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[Y]], 1.200000e+01
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; CHECK-NEXT: ret float [[Z]]
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;
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%W = fadd reassoc float %B, 5.000000e+00
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%X = fadd reassoc float %A, -7.000000e+00
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%Y = fsub reassoc float %X, %W
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%Z = fadd reassoc float %Y, 1.200000e+01
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ret float %Z
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}
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define float @test3(float %A, float %B, float %C, float %D) {
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@ -47,6 +63,7 @@ define float @test3(float %A, float %B, float %C, float %D) {
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}
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; With sub reassociation, constant folding can eliminate the two 12 constants.
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define float @test4(float %A, float %B, float %C, float %D) {
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; FIXME: InstCombine should be able to get us to the following:
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; %sum = fadd fast float %B, %A
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@ -68,3 +85,22 @@ define float @test4(float %A, float %B, float %C, float %D) {
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ret float %Q
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}
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; Check again using minimal subset of FMF.
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define float @test4_reassoc(float %A, float %B, float %C, float %D) {
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; CHECK-LABEL: @test4_reassoc(
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; CHECK-NEXT: [[M:%.*]] = fadd reassoc float %A, 1.200000e+01
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; CHECK-NEXT: [[N:%.*]] = fadd reassoc float [[M]], %B
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; CHECK-NEXT: [[O:%.*]] = fadd reassoc float [[N]], %C
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; CHECK-NEXT: [[P:%.*]] = fsub reassoc float %D, [[O]]
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; CHECK-NEXT: [[Q:%.*]] = fadd reassoc float [[P]], 1.200000e+01
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; CHECK-NEXT: ret float [[Q]]
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;
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%M = fadd reassoc float 1.200000e+01, %A
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%N = fadd reassoc float %M, %B
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%O = fadd reassoc float %N, %C
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%P = fsub reassoc float %D, %O
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%Q = fadd reassoc float 1.200000e+01, %P
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ret float %Q
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}
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@ -11,6 +11,17 @@ define float @test1(float %arg) {
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ret float %t2
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}
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define float @test1_reassoc(float %arg) {
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; CHECK-LABEL: @test1_reassoc(
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; CHECK-NEXT: [[T1:%.*]] = fsub reassoc float -1.200000e+01, %arg
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; CHECK-NEXT: [[T2:%.*]] = fadd reassoc float [[T1]], 1.200000e+01
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; CHECK-NEXT: ret float [[T2]]
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;
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%t1 = fsub reassoc float -1.200000e+01, %arg
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%t2 = fadd reassoc float %t1, 1.200000e+01
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ret float %t2
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}
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define float @test2(float %reg109, float %reg1111) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[REG115:%.*]] = fadd float %reg109, -3.000000e+01
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@ -35,6 +46,19 @@ define float @test3(float %reg109, float %reg1111) {
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ret float %reg117
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}
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define float @test3_reassoc(float %reg109, float %reg1111) {
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; CHECK-LABEL: @test3_reassoc(
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; CHECK-NEXT: [[REG115:%.*]] = fadd reassoc float %reg109, -3.000000e+01
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; CHECK-NEXT: [[REG116:%.*]] = fadd reassoc float [[REG115]], %reg1111
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; CHECK-NEXT: [[REG117:%.*]] = fadd reassoc float [[REG116]], 3.000000e+01
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; CHECK-NEXT: ret float [[REG117]]
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;
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%reg115 = fadd reassoc float %reg109, -3.000000e+01
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%reg116 = fadd reassoc float %reg115, %reg1111
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%reg117 = fadd reassoc float %reg116, 3.000000e+01
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ret float %reg117
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}
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@fe = external global float
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@fa = external global float
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@fb = external global float
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@ -131,6 +155,25 @@ define float @test7(float %A, float %B, float %C) {
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ret float %r
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}
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define float @test7_reassoc(float %A, float %B, float %C) {
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; CHECK-LABEL: @test7_reassoc(
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; CHECK-NEXT: [[AA:%.*]] = fmul reassoc float %A, %A
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; CHECK-NEXT: [[AAB:%.*]] = fmul reassoc float [[AA]], %B
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; CHECK-NEXT: [[AC:%.*]] = fmul reassoc float %A, %C
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; CHECK-NEXT: [[AAC:%.*]] = fmul reassoc float [[AC]], %A
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; CHECK-NEXT: [[R:%.*]] = fadd reassoc float [[AAB]], [[AAC]]
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; CHECK-NEXT: ret float [[R]]
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;
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%aa = fmul reassoc float %A, %A
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%aab = fmul reassoc float %aa, %B
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%ac = fmul reassoc float %A, %C
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%aac = fmul reassoc float %ac, %A
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%r = fadd reassoc float %aab, %aac
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ret float %r
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}
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; (-X)*Y + Z -> Z-X*Y
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define float @test8(float %X, float %Y, float %Z) {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: [[A:%.*]] = fmul fast float %Y, %X
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@ -139,11 +182,23 @@ define float @test8(float %X, float %Y, float %Z) {
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;
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%A = fsub fast float 0.0, %X
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%B = fmul fast float %A, %Y
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; (-X)*Y + Z -> Z-X*Y
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%C = fadd fast float %B, %Z
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ret float %C
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}
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define float @test8_reassoc(float %X, float %Y, float %Z) {
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; CHECK-LABEL: @test8_reassoc(
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; CHECK-NEXT: [[A:%.*]] = fsub reassoc float 0.000000e+00, %X
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; CHECK-NEXT: [[B:%.*]] = fmul reassoc float [[A]], %Y
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; CHECK-NEXT: [[C:%.*]] = fadd reassoc float [[B]], %Z
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; CHECK-NEXT: ret float [[C]]
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;
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%A = fsub reassoc float 0.0, %X
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%B = fmul reassoc float %A, %Y
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%C = fadd reassoc float %B, %Z
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ret float %C
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}
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define float @test9(float %X) {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast float %X, 9.400000e+01
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@ -154,6 +209,17 @@ define float @test9(float %X) {
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ret float %Z
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}
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define float @test9_reassoc(float %X) {
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; CHECK-LABEL: @test9_reassoc(
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; CHECK-NEXT: [[Y:%.*]] = fmul reassoc float %X, 4.700000e+01
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; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[Y]], [[Y]]
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; CHECK-NEXT: ret float [[Z]]
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;
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%Y = fmul reassoc float %X, 4.700000e+01
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%Z = fadd reassoc float %Y, %Y
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ret float %Z
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}
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define float @test10(float %X) {
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; CHECK-LABEL: @test10(
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; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast float %X, 3.000000e+00
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@ -164,6 +230,17 @@ define float @test10(float %X) {
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ret float %Z
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}
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define float @test10_reassoc(float %X) {
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; CHECK-LABEL: @test10_reassoc(
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; CHECK-NEXT: [[Y:%.*]] = fadd reassoc float %X, %X
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; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[Y]], %X
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; CHECK-NEXT: ret float [[Z]]
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;
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%Y = fadd reassoc float %X ,%X
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%Z = fadd reassoc float %Y, %X
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ret float %Z
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}
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define float @test11(float %W) {
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; CHECK-LABEL: @test11(
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; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast float %W, 3.810000e+02
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@ -175,6 +252,19 @@ define float @test11(float %W) {
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ret float %Z
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}
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define float @test11_reassoc(float %W) {
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; CHECK-LABEL: @test11_reassoc(
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; CHECK-NEXT: [[X:%.*]] = fmul reassoc float %W, 1.270000e+02
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; CHECK-NEXT: [[Y:%.*]] = fadd reassoc float [[X]], [[X]]
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; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[X]], [[Y]]
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; CHECK-NEXT: ret float [[Z]]
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;
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%X = fmul reassoc float %W, 127.0
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%Y = fadd reassoc float %X ,%X
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%Z = fadd reassoc float %Y, %X
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ret float %Z
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}
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define float @test12(float %X) {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: [[FACTOR:%.*]] = fmul fast float %X, -3.000000e+00
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@ -189,6 +279,23 @@ define float @test12(float %X) {
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ret float %Z
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}
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define float @test12_reassoc(float %X) {
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; CHECK-LABEL: @test12_reassoc(
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; CHECK-NEXT: [[A:%.*]] = fsub reassoc float 1.000000e+00, %X
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; CHECK-NEXT: [[B:%.*]] = fsub reassoc float 2.000000e+00, %X
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; CHECK-NEXT: [[C:%.*]] = fsub reassoc float 3.000000e+00, %X
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; CHECK-NEXT: [[Y:%.*]] = fadd reassoc float [[A]], [[B]]
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; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[C]], [[Y]]
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; CHECK-NEXT: ret float [[Z]]
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;
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%A = fsub reassoc float 1.000000e+00, %X
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%B = fsub reassoc float 2.000000e+00, %X
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%C = fsub reassoc float 3.000000e+00, %X
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%Y = fadd reassoc float %A ,%B
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%Z = fadd reassoc float %Y, %C
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ret float %Z
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}
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define float @test13(float %X1, float %X2, float %X3) {
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; CHECK-LABEL: @test13(
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; CHECK-NEXT: [[REASS_ADD:%.*]] = fsub fast float %X3, %X2
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@ -202,6 +309,21 @@ define float @test13(float %X1, float %X2, float %X3) {
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ret float %D
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}
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define float @test13_reassoc(float %X1, float %X2, float %X3) {
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; CHECK-LABEL: @test13_reassoc(
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; CHECK-NEXT: [[A:%.*]] = fsub reassoc float 0.000000e+00, %X1
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; CHECK-NEXT: [[B:%.*]] = fmul reassoc float [[A]], %X2
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; CHECK-NEXT: [[C:%.*]] = fmul reassoc float %X1, %X3
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; CHECK-NEXT: [[D:%.*]] = fadd reassoc float [[B]], [[C]]
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; CHECK-NEXT: ret float [[D]]
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;
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%A = fsub reassoc float 0.000000e+00, %X1
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%B = fmul reassoc float %A, %X2 ; -X1*X2
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%C = fmul reassoc float %X1, %X3 ; X1*X3
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%D = fadd reassoc float %B, %C ; -X1*X2 + X1*X3 -> X1*(X3-X2)
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ret float %D
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}
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define float @test14(float %X1, float %X2) {
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; CHECK-LABEL: @test14(
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; CHECK-NEXT: [[TMP1:%.*]] = fsub fast float %X1, %X2
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@ -214,6 +336,19 @@ define float @test14(float %X1, float %X2) {
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ret float %D
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}
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define float @test14_reassoc(float %X1, float %X2) {
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; CHECK-LABEL: @test14_reassoc(
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; CHECK-NEXT: [[B:%.*]] = fmul reassoc float %X1, 4.700000e+01
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; CHECK-NEXT: [[C:%.*]] = fmul reassoc float %X2, 4.700000e+01
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; CHECK-NEXT: [[D1:%.*]] = fsub reassoc float [[B]], [[C]]
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; CHECK-NEXT: ret float [[D1]]
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;
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%B = fmul reassoc float %X1, 47. ; X1*47
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%C = fmul reassoc float %X2, -47. ; X2*-47
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%D = fadd reassoc float %B, %C ; X1*47 + X2*-47 -> 47*(X1-X2)
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ret float %D
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}
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define float @test15(float %arg) {
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; CHECK-LABEL: @test15(
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; CHECK-NEXT: [[T2:%.*]] = fmul fast float %arg, 1.440000e+02
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@ -224,6 +359,17 @@ define float @test15(float %arg) {
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ret float %t2
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}
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define float @test15_reassoc(float %arg) {
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; CHECK-LABEL: @test15_reassoc(
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; CHECK-NEXT: [[T1:%.*]] = fmul reassoc float %arg, 1.200000e+01
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; CHECK-NEXT: [[T2:%.*]] = fmul reassoc float [[T1]], 1.200000e+01
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; CHECK-NEXT: ret float [[T2]]
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;
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%t1 = fmul reassoc float 1.200000e+01, %arg
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%t2 = fmul reassoc float %t1, 1.200000e+01
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ret float %t2
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}
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; (b+(a+1234))+-a -> b+1234
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define float @test16(float %b, float %a) {
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; CHECK-LABEL: @test16(
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@ -237,6 +383,21 @@ define float @test16(float %b, float %a) {
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ret float %4
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}
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define float @test16_reassoc(float %b, float %a) {
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; CHECK-LABEL: @test16_reassoc(
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; CHECK-NEXT: [[TMP1:%.*]] = fadd reassoc float %a, 1.234000e+03
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; CHECK-NEXT: [[TMP2:%.*]] = fadd reassoc float [[TMP1]], %b
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; CHECK-NEXT: [[TMP3:%.*]] = fsub reassoc float 0.000000e+00, %a
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; CHECK-NEXT: [[TMP4:%.*]] = fadd reassoc float [[TMP3]], [[TMP2]]
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; CHECK-NEXT: ret float [[TMP4]]
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;
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%1 = fadd reassoc float %a, 1234.0
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%2 = fadd reassoc float %b, %1
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%3 = fsub reassoc float 0.0, %a
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%4 = fadd reassoc float %2, %3
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ret float %4
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}
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; Test that we can turn things like X*-(Y*Z) -> X*-1*Y*Z.
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define float @test17(float %a, float %b, float %z) {
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@ -254,6 +415,23 @@ define float @test17(float %a, float %b, float %z) {
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ret float %g
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}
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define float @test17_reassoc(float %a, float %b, float %z) {
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; CHECK-LABEL: @test17_reassoc(
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; CHECK-NEXT: [[C:%.*]] = fsub reassoc float 0.000000e+00, %z
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; CHECK-NEXT: [[D:%.*]] = fmul reassoc float %a, %b
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; CHECK-NEXT: [[E:%.*]] = fmul reassoc float [[D]], [[C]]
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; CHECK-NEXT: [[F:%.*]] = fmul reassoc float [[E]], 1.234500e+04
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; CHECK-NEXT: [[G:%.*]] = fsub reassoc float 0.000000e+00, [[F]]
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; CHECK-NEXT: ret float [[G]]
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;
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%c = fsub reassoc float 0.000000e+00, %z
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%d = fmul reassoc float %a, %b
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%e = fmul reassoc float %c, %d
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%f = fmul reassoc float %e, 1.234500e+04
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%g = fsub reassoc float 0.000000e+00, %f
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ret float %g
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}
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define float @test18(float %a, float %b, float %z) {
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; CHECK-LABEL: @test18(
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; CHECK-NEXT: [[E:%.*]] = fmul fast float %a, 4.000000e+01
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@ -267,6 +445,21 @@ define float @test18(float %a, float %b, float %z) {
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ret float %f
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}
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define float @test18_reassoc(float %a, float %b, float %z) {
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; CHECK-LABEL: @test18_reassoc(
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; CHECK-NEXT: [[D:%.*]] = fmul reassoc float %z, 4.000000e+01
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; CHECK-NEXT: [[C:%.*]] = fsub reassoc float 0.000000e+00, [[D]]
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; CHECK-NEXT: [[E:%.*]] = fmul reassoc float [[C]], %a
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; CHECK-NEXT: [[F:%.*]] = fsub reassoc float 0.000000e+00, [[E]]
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; CHECK-NEXT: ret float [[F]]
|
||||
;
|
||||
%d = fmul reassoc float %z, 4.000000e+01
|
||||
%c = fsub reassoc float 0.000000e+00, %d
|
||||
%e = fmul reassoc float %a, %c
|
||||
%f = fsub reassoc float 0.000000e+00, %e
|
||||
ret float %f
|
||||
}
|
||||
|
||||
; With sub reassociation, constant folding can eliminate the 12 and -12 constants.
|
||||
define float @test19(float %A, float %B) {
|
||||
; CHECK-LABEL: @test19(
|
||||
@ -279,6 +472,19 @@ define float @test19(float %A, float %B) {
|
||||
ret float %Z
|
||||
}
|
||||
|
||||
define float @test19_reassoc(float %A, float %B) {
|
||||
; CHECK-LABEL: @test19_reassoc(
|
||||
; CHECK-NEXT: [[X:%.*]] = fadd reassoc float %A, -1.200000e+01
|
||||
; CHECK-NEXT: [[Y:%.*]] = fsub reassoc float [[X]], %B
|
||||
; CHECK-NEXT: [[Z:%.*]] = fadd reassoc float [[Y]], 1.200000e+01
|
||||
; CHECK-NEXT: ret float [[Z]]
|
||||
;
|
||||
%X = fadd reassoc float -1.200000e+01, %A
|
||||
%Y = fsub reassoc float %X, %B
|
||||
%Z = fadd reassoc float %Y, 1.200000e+01
|
||||
ret float %Z
|
||||
}
|
||||
|
||||
; With sub reassociation, constant folding can eliminate the uses of %a.
|
||||
define float @test20(float %a, float %b, float %c) nounwind {
|
||||
; FIXME: Should be able to generate the below, which may expose more
|
||||
@ -295,3 +501,17 @@ define float @test20(float %a, float %b, float %c) nounwind {
|
||||
%t7 = fsub fast float %t5, %a
|
||||
ret float %t7
|
||||
}
|
||||
|
||||
define float @test20_reassoc(float %a, float %b, float %c) nounwind {
|
||||
; CHECK-LABEL: @test20_reassoc(
|
||||
; CHECK-NEXT: [[T3:%.*]] = fsub reassoc float %a, %b
|
||||
; CHECK-NEXT: [[T5:%.*]] = fsub reassoc float [[T3]], %c
|
||||
; CHECK-NEXT: [[T7:%.*]] = fsub reassoc float [[T5]], %a
|
||||
; CHECK-NEXT: ret float [[T7]]
|
||||
;
|
||||
%t3 = fsub reassoc float %a, %b
|
||||
%t5 = fsub reassoc float %t3, %c
|
||||
%t7 = fsub reassoc float %t5, %a
|
||||
ret float %t7
|
||||
}
|
||||
|
||||
|
||||
@ -11,10 +11,32 @@ define float @foo(float %a,float %b, float %c) {
|
||||
;
|
||||
%mul1 = fmul fast float %a, %c
|
||||
%mul2 = fmul fast float %a, %b
|
||||
%mul3 = fmul float %a, %b
|
||||
%mul3 = fmul float %a, %b ; STRICT
|
||||
%mul4 = fmul fast float %a, %c
|
||||
%add1 = fadd fast float %mul1, %mul3
|
||||
%add2 = fadd fast float %mul4, %mul2
|
||||
%add2 = fadd fast float %mul4, %mul2
|
||||
%add3 = fadd fast float %add1, %add2
|
||||
ret float %add3
|
||||
}
|
||||
|
||||
define float @foo_reassoc(float %a,float %b, float %c) {
|
||||
; CHECK-LABEL: @foo_reassoc(
|
||||
; CHECK-NEXT: [[MUL1:%.*]] = fmul reassoc float %a, %c
|
||||
; CHECK-NEXT: [[MUL2:%.*]] = fmul fast float %b, %a
|
||||
; CHECK-NEXT: [[MUL3:%.*]] = fmul float %a, %b
|
||||
; CHECK-NEXT: [[MUL4:%.*]] = fmul reassoc float %a, %c
|
||||
; CHECK-NEXT: [[ADD1:%.*]] = fadd fast float [[MUL1]], [[MUL3]]
|
||||
; CHECK-NEXT: [[ADD2:%.*]] = fadd reassoc float [[MUL2]], [[MUL4]]
|
||||
; CHECK-NEXT: [[ADD3:%.*]] = fadd fast float [[ADD1]], [[ADD2]]
|
||||
; CHECK-NEXT: ret float [[ADD3]]
|
||||
;
|
||||
%mul1 = fmul reassoc float %a, %c
|
||||
%mul2 = fmul fast float %a, %b
|
||||
%mul3 = fmul float %a, %b ; STRICT
|
||||
%mul4 = fmul reassoc float %a, %c
|
||||
%add1 = fadd fast float %mul1, %mul3
|
||||
%add2 = fadd reassoc float %mul4, %mul2
|
||||
%add3 = fadd fast float %add1, %add2
|
||||
ret float %add3
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user