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llvm-6502/test/Transforms/InstCombine/2009-01-19-fmod-constant-float-specials.ll
John McCall e12b73816b Teach APFloat how to create both QNaNs and SNaNs and with arbitrary-width 
payloads.  APFloat's internal folding routines always make QNaNs now,
instead of sometimes making QNaNs and sometimes SNaNs depending on the
type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-28 02:51:25 +00:00

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; RUN: opt < %s -simplifycfg -instcombine -S | grep 0x7FF8000000000000 | count 12
; RUN: opt < %s -simplifycfg -instcombine -S | grep {0\\.0} | count 3
; RUN: opt < %s -simplifycfg -instcombine -S | grep {3\\.5} | count 1
;
; ModuleID = 'apf.c'
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.6"
@"\01LC" = internal constant [4 x i8] c"%f\0A\00" ; <[4 x i8]*> [#uses=1]
define void @foo1() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF0000000000000, float* %x, align 4
store float 0x7FF8000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
declare i32 @printf(i8*, ...) nounwind
define void @foo2() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF0000000000000, float* %x, align 4
store float 0.000000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo3() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF0000000000000, float* %x, align 4
store float 3.500000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo4() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF0000000000000, float* %x, align 4
store float 0x7FF0000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo5() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF8000000000000, float* %x, align 4
store float 0x7FF0000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo6() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF8000000000000, float* %x, align 4
store float 0.000000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo7() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF8000000000000, float* %x, align 4
store float 3.500000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo8() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0x7FF8000000000000, float* %x, align 4
store float 0x7FF8000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo9() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0.000000e+00, float* %x, align 4
store float 0x7FF8000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo10() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0.000000e+00, float* %x, align 4
store float 0x7FF0000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo11() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0.000000e+00, float* %x, align 4
store float 0.000000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo12() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 0.000000e+00, float* %x, align 4
store float 3.500000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo13() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 3.500000e+00, float* %x, align 4
store float 0x7FF8000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo14() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 3.500000e+00, float* %x, align 4
store float 0x7FF0000000000000, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo15() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 3.500000e+00, float* %x, align 4
store float 0.000000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
define void @foo16() nounwind {
entry:
%y = alloca float ; <float*> [#uses=2]
%x = alloca float ; <float*> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store float 3.500000e+00, float* %x, align 4
store float 3.500000e+00, float* %y, align 4
%0 = load float* %y, align 4 ; <float> [#uses=1]
%1 = fpext float %0 to double ; <double> [#uses=1]
%2 = load float* %x, align 4 ; <float> [#uses=1]
%3 = fpext float %2 to double ; <double> [#uses=1]
%4 = frem double %3, %1 ; <double> [#uses=1]
%5 = call i32 (i8*, ...)* @printf(i8* getelementptr ([4 x i8]* @"\01LC", i32 0, i32 0), double %4) nounwind ; <i32> [#uses=0]
br label %return
return: ; preds = %entry
ret void
}
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