Test source: git
Comments: LLVM PR50281
Source: <stdin>
----------------------------------------
define double @t1(float %a) {
%0:
%1 = fcmp ult float %a, 5.000000
%2 = select i1 %1, float %a, float 5.000000
%3 = fpext float %2 to double
ret double %3
}
=>
define double @t1(float %a) {
%0:
%.inv = fcmp oge float %a, 5.000000
%1 = select i1 %.inv, float 5.000000, float %a
%2 = fpext float %1 to double
ret double %2
}
Transformation seems to be correct!
----------------------------------------
define double @t2(float %a) {
%0:
%1 = fcmp ult float %a, 5.000000
%2 = fpext float %a to double
%3 = select i1 %1, double %2, double 5.000000
ret double %3
}
=>
define double @t2(float %a) {
%0:
%.inv = fcmp oge float %a, 5.000000
%1 = select i1 %.inv, float 5.000000, float %a
%2 = fpext float %1 to double
ret double %2
}
Transformation seems to be correct!
----------------------------------------
define float @t4(double %a) {
%0:
%1 = fcmp ult double %a, 5.000000
%2 = fptrunc double %a to float
%3 = select i1 %1, float %2, float 5.000000
ret float %3
}
=>
define float @t4(double %a) {
%0:
%.inv = fcmp oge double %a, 5.000000
%1 = select i1 %.inv, double 5.000000, double %a
%2 = fptrunc double %1 to float
ret float %2
}
Transformation doesn't verify!
ERROR: Timeout
----------------------------------------
define double @t6(float %a) {
%0:
%1 = fcmp ult float %a, -0.000000
%2 = fpext float %a to double
%3 = select i1 %1, double %2, double 0.000000
ret double %3
}
=>
define double @t6(float %a) {
%0:
%.inv = fcmp oge float %a, 0.000000
%1 = select i1 %.inv, float 0.000000, float %a
%2 = fpext float %1 to double
ret double %2
}
Transformation seems to be correct!
----------------------------------------
define double @t7(float %a) {
%0:
%1 = fcmp ult float %a, 0.000000
%2 = fpext float %a to double
%3 = select i1 %1, double %2, double -0.000000
ret double %3
}
=>
define double @t7(float %a) {
%0:
%.inv = fcmp oge float %a, 0.000000
%1 = select i1 %.inv, float -0.000000, float %a
%2 = fpext float %1 to double
ret double %2
}
Transformation seems to be correct!
----------------------------------------
define float @fmin_fmin_zero_mismatch(float %x) {
%0:
%cmp1 = fcmp olt float %x, -0.000000
%min1 = select i1 %cmp1, float %x, float 0.000000
%cmp2 = fcmp olt float %min1, 0.000000
%min2 = select i1 %cmp2, float %min1, float 0.000000
ret float %min2
}
=>
define float @fmin_fmin_zero_mismatch(float %x) {
%0:
%1 = fcmp olt float %x, 0.000000
%min2 = select i1 %1, float %x, float 0.000000
ret float %min2
}
Transformation seems to be correct!
----------------------------------------
define float @fmax_fmax_zero_mismatch(float %x) {
%0:
%cmp1 = fcmp ogt float %x, 0.000000
%max1 = select i1 %cmp1, float %x, float -0.000000
%cmp2 = fcmp ogt float 0.000000, %max1
%max2 = select i1 %cmp2, float -0.000000, float %max1
ret float %max2
}
=>
define float @fmax_fmax_zero_mismatch(float %x) {
%0:
%1 = fcmp ogt float %x, -0.000000
%max11 = select i1 %1, float %x, float -0.000000
ret float %max11
}
Transformation seems to be correct!
----------------------------------------
define i64 @t8(float %a) {
%0:
%1 = fcmp ult float %a, 5.000000
%2 = fptoui float %a to i64
%3 = select i1 %1, i64 %2, i64 5
ret i64 %3
}
=>
define i64 @t8(float %a) {
%0:
%.inv = fcmp oge float %a, 5.000000
%1 = select i1 %.inv, float 5.000000, float %a
%2 = fptoui float %1 to i64
ret i64 %2
}
Transformation doesn't verify!
ERROR: Timeout
----------------------------------------
define i8 @t9(float %a) {
%0:
%1 = fcmp ult float %a, 0.000000
%2 = fptosi float %a to i8
%3 = select i1 %1, i8 %2, i8 0
ret i8 %3
}
=>
define i8 @t9(float %a) {
%0:
%.inv = fcmp oge float %a, 0.000000
%1 = select i1 %.inv, float 0.000000, float %a
%2 = fptosi float %1 to i8
ret i8 %2
}
Transformation seems to be correct!
----------------------------------------
define i8 @t11(float %a, float %b) {
%0:
%1 = fcmp fast ult float %b, %a
%2 = fptosi float %a to i8
%3 = fptosi float %b to i8
%4 = select i1 %1, i8 %3, i8 %2
ret i8 %4
}
=>
define i8 @t11(float %a, float %b) {
%0:
%.inv = fcmp fast oge float %b, %a
%1 = select i1 %.inv, float %a, float %b
%2 = fptosi float %1 to i8
ret i8 %2
}
Transformation doesn't verify!
ERROR: Couldn't prove the correctness of the transformation
Alive2 approximated the semantics of the programs and therefore we
cannot conclude whether the bug found is valid or not.
Approximations done:
- afn
- arcp
- contract
- reassoc
----------------------------------------
define i8 @t12(float %a, float %b) {
%0:
%1 = fcmp nnan ult float %b, %a
%2 = fptosi float %a to i8
%3 = fptosi float %b to i8
%4 = select i1 %1, i8 %3, i8 %2
ret i8 %4
}
=>
define i8 @t12(float %a, float %b) {
%0:
%.inv = fcmp nnan oge float %b, %a
%1 = select i1 %.inv, float %a, float %b
%2 = fptosi float %1 to i8
ret i8 %2
}
Transformation seems to be correct!
----------------------------------------
define i8 @t14(float %a) {
%0:
%1 = fcmp ule float %a, 0.000000
%2 = fptosi float %a to i8
%3 = select i1 %1, i8 %2, i8 0
ret i8 %3
}
=>
define i8 @t14(float %a) {
%0:
%.inv = fcmp oge float %a, 0.000000
%1 = select i1 %.inv, float 0.000000, float %a
%2 = fptosi float %1 to i8
ret i8 %2
}
Transformation seems to be correct!
----------------------------------------
define i8 @t14_commute(float %a) {
%0:
%1 = fcmp ule float %a, 0.000000
%2 = fptosi float %a to i8
%3 = select i1 %1, i8 0, i8 %2
ret i8 %3
}
=>
define i8 @t14_commute(float %a) {
%0:
%1 = fcmp ogt float %a, 0.000000
%2 = select i1 %1, float %a, float 0.000000
%3 = fptosi float %2 to i8
ret i8 %3
}
Transformation seems to be correct!
----------------------------------------
define i8 @t15(float %a) {
%0:
%1 = fcmp nsz ule float %a, 0.000000
%2 = fptosi float %a to i8
%3 = select i1 %1, i8 %2, i8 0
ret i8 %3
}
=>
define i8 @t15(float %a) {
%0:
%.inv = fcmp nsz oge float %a, 0.000000
%1 = select i1 %.inv, float 0.000000, float %a
%2 = fptosi float %1 to i8
ret i8 %2
}
Transformation seems to be correct!
----------------------------------------
define double @t17(i32 %x) {
%0:
%cmp = icmp sgt i32 %x, 2
%cst = sitofp i32 %x to double
%sel = select i1 %cmp, double %cst, double 2.000000
ret double %sel
}
=>
define double @t17(i32 %x) {
%0:
%1 = icmp sgt i32 %x, 2
%sel1 = select i1 %1, i32 %x, i32 2
%2 = sitofp i32 %sel1 to double
ret double %2
}
Transformation seems to be correct!
----------------------------------------
define float @fneg_fmax(float %x, float %y) {
%0:
%n1 = fneg float %x
%n2 = fneg float %y
%cond = fcmp nnan ogt float %n1, %n2
%max = select i1 %cond, float %n1, float %n2
ret float %max
}
=>
define float @fneg_fmax(float %x, float %y) {
%0:
%cond = fcmp nnan olt float %x, %y
%max.v = select i1 %cond, float %x, float %y
%max = fneg float %max.v
ret float %max
}
Transformation seems to be correct!
----------------------------------------
define <2 x float> @fsub_fmax(<2 x float> %x, <2 x float> %y) {
%0:
%n1 = fsub <2 x float> { -0.000000, -0.000000 }, %x
%n2 = fsub <2 x float> { -0.000000, -0.000000 }, %y
%cond = fcmp nnan nsz uge <2 x float> %n1, %n2
%max = select <2 x i1> %cond, <2 x float> %n1, <2 x float> %n2
ret <2 x float> %max
}
=>
define <2 x float> @fsub_fmax(<2 x float> %x, <2 x float> %y) {
%0:
%cond.inv = fcmp nnan nsz ogt <2 x float> %x, %y
%1 = select <2 x i1> %cond.inv, <2 x float> %y, <2 x float> %x
%max = fneg <2 x float> %1
ret <2 x float> %max
}
Transformation doesn't verify!
ERROR: Timeout
----------------------------------------
define <2 x double> @fsub_fmin(<2 x double> %x, <2 x double> %y) {
%0:
%n1 = fsub <2 x double> { -0.000000, -0.000000 }, %x
%n2 = fsub <2 x double> { -0.000000, -0.000000 }, %y
%cond = fcmp nnan olt <2 x double> %n1, %n2
%max = select <2 x i1> %cond, <2 x double> %n1, <2 x double> %n2
ret <2 x double> %max
}
=>
define <2 x double> @fsub_fmin(<2 x double> %x, <2 x double> %y) {
%0:
%cond = fcmp nnan ogt <2 x double> %x, %y
%max.v = select <2 x i1> %cond, <2 x double> %x, <2 x double> %y
%max = fneg <2 x double> %max.v
ret <2 x double> %max
}
Transformation doesn't verify!
ERROR: Timeout
----------------------------------------
define double @fneg_fmin(double %x, double %y) {
%0:
%n1 = fneg double %x
%n2 = fneg double %y
%cond = fcmp nnan nsz ule double %n1, %n2
%max = select i1 %cond, double %n1, double %n2
ret double %max
}
=>
define double @fneg_fmin(double %x, double %y) {
%0:
%cond.inv = fcmp nnan nsz olt double %x, %y
%1 = select i1 %cond.inv, double %y, double %x
%max = fneg double %1
ret double %max
}
Transformation seems to be correct!
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define float @maxnum_ogt_fmf_on_select(float %a, float %b) {
%0:
%cond = fcmp ogt float %a, %b
%f = select i1 %cond, float %a, float %b
ret float %f
}
=>
define float @maxnum_ogt_fmf_on_select(float %a, float %b) {
%0:
%1 = fmax nnan nsz float %a, %b
ret float %1
}
Transformation doesn't verify!
ERROR: Target is more poisonous than source
Example:
float %a = NaN
float %b = #x20008b45 (0.000000000000?)
Source:
i1 %cond = #x0 (0)
float %f = #x20008b45 (0.000000000000?)
Target:
float %1 = poison
Source value: #x20008b45 (0.000000000000?)
Target value: poison
------------------- SMT STATS -------------------
Num queries: 74
Num invalid: 0
Num skips: 0
Num trivial: 59 (44.4%)
Num timeout: 4 (5.4%)
Num errors: 0 (0.0%)
Num SAT: 22 (29.7%)
Num UNSAT: 48 (64.9%)
Alive2: Transform doesn't verify; aborting!
+ : 'RUN: at line 2' + /home/nlopes/alive2/build/opt-alive.sh -S -instcombine + /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/minmax-fp.ll FileCheck error: '<stdin>' is empty. FileCheck command line: /home/nlopes/llvm/build/bin/FileCheck /home/nlopes/llvm/llvm/test/Transforms/InstCombine/minmax-fp.ll