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[InstCombine] add tests for binop with FMF with select operands; NFC 

Baseline coverage for D65658.

llvm-svn: 368028
This commit is contained in:
Sanjay Patel 2019-08-06 13:19:13 +00:00
parent b2ec7a0da6
commit efc24d9d6f
1 changed files with 51 additions and 0 deletions
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51
llvm/test/Transforms/InstCombine/select_arithmetic.ll
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@ -92,3 +92,54 @@ define float @test5(i1 zeroext %arg, float %div) {
ret float %mul
}
define float @fmul_nnan_nsz(i1 %cond, float %val) {
; CHECK-LABEL: @fmul_nnan_nsz(
; CHECK-NEXT: [[LHS:%.*]] = select i1 [[COND:%.*]], float [[VAL:%.*]], float 0.000000e+00
; CHECK-NEXT: [[RHS:%.*]] = select i1 [[COND]], float -0.000000e+00, float [[VAL]]
; CHECK-NEXT: [[MUL:%.*]] = fmul nnan nsz float [[LHS]], [[RHS]]
; CHECK-NEXT: ret float [[MUL]]
;
%lhs = select i1 %cond, float %val, float +0.0
%rhs = select i1 %cond, float -0.0, float %val
%mul = fmul nnan nsz float %lhs, %rhs
ret float %mul
}
define <2 x float> @fadd_nsz(<2 x i1> %cond, <2 x float> %val) {
; CHECK-LABEL: @fadd_nsz(
; CHECK-NEXT: [[LHS:%.*]] = select <2 x i1> [[COND:%.*]], <2 x float> [[VAL:%.*]], <2 x float> zeroinitializer
; CHECK-NEXT: [[RHS:%.*]] = select <2 x i1> [[COND]], <2 x float> zeroinitializer, <2 x float> [[VAL]]
; CHECK-NEXT: [[ADD:%.*]] = fadd nsz <2 x float> [[LHS]], [[RHS]]
; CHECK-NEXT: ret <2 x float> [[ADD]]
;
%lhs = select <2 x i1> %cond, <2 x float> %val, <2 x float> <float +0.0, float +0.0>
%rhs = select <2 x i1> %cond, <2 x float> <float +0.0, float +0.0>, <2 x float> %val
%add = fadd nsz <2 x float> %lhs, %rhs
ret <2 x float> %add
}
define double @fsub_nnan(i1 %cond, double %val, double %val2) {
; CHECK-LABEL: @fsub_nnan(
; CHECK-NEXT: [[LHS:%.*]] = select i1 [[COND:%.*]], double [[VAL:%.*]], double [[VAL2:%.*]]
; CHECK-NEXT: [[RHS:%.*]] = select i1 [[COND]], double [[VAL]], double 7.000000e+00
; CHECK-NEXT: [[ADD:%.*]] = fsub nnan double [[LHS]], [[RHS]]
; CHECK-NEXT: ret double [[ADD]]
;
%lhs = select i1 %cond, double %val, double %val2
%rhs = select i1 %cond, double %val, double 7.0
%add = fsub nnan double %lhs, %rhs
ret double %add
}
define double @fdiv_nnan_nsz(i1 %cond, double %val, double %val2) {
; CHECK-LABEL: @fdiv_nnan_nsz(
; CHECK-NEXT: [[LHS:%.*]] = select i1 [[COND:%.*]], double [[VAL2:%.*]], double 0.000000e+00
; CHECK-NEXT: [[RHS:%.*]] = select i1 [[COND]], double 4.200000e+01, double [[VAL:%.*]]
; CHECK-NEXT: [[ADD:%.*]] = fdiv nnan nsz double [[LHS]], [[RHS]]
; CHECK-NEXT: ret double [[ADD]]
;
%lhs = select i1 %cond, double %val2, double 0.0
%rhs = select i1 %cond, double 42.0, double %val
%add = fdiv nnan nsz double %lhs, %rhs
ret double %add
}