478dd3a28d
This attribute is also set by Clang when it compiles C source files (unless -fexceptions is set). The advantage is that no unwind tables are emitted on Linux (and perhaps other systems). It also avoids __aeabi_unwind_cpp_pr0 on ARM when using the musl libc.
93 строки
2,9 КиБ
LLVM
93 строки
2,9 КиБ
LLVM
; ModuleID = 'float.go'
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source_filename = "float.go"
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-wasi"
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declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.init(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define hidden i32 @main.f32tou32(float %v, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%positive = fcmp oge float %v, 0.000000e+00
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%withinmax = fcmp ole float %v, 0x41EFFFFFC0000000
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%inbounds = and i1 %positive, %withinmax
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%saturated = sext i1 %positive to i32
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%normal = fptoui float %v to i32
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%0 = select i1 %inbounds, i32 %normal, i32 %saturated
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ret i32 %0
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}
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; Function Attrs: nounwind
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define hidden float @main.maxu32f(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret float 0x41F0000000000000
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}
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; Function Attrs: nounwind
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define hidden i32 @main.maxu32tof32(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret i32 -1
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}
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; Function Attrs: nounwind
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define hidden { i32, i32, i32, i32 } @main.inftoi32(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret { i32, i32, i32, i32 } { i32 -1, i32 0, i32 2147483647, i32 -2147483648 }
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}
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; Function Attrs: nounwind
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define hidden i32 @main.u32tof32tou32(i32 %v, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%0 = uitofp i32 %v to float
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%withinmax = fcmp ole float %0, 0x41EFFFFFC0000000
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%normal = fptoui float %0 to i32
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%1 = select i1 %withinmax, i32 %normal, i32 -1
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ret i32 %1
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}
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; Function Attrs: nounwind
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define hidden float @main.f32tou32tof32(float %v, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%positive = fcmp oge float %v, 0.000000e+00
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%withinmax = fcmp ole float %v, 0x41EFFFFFC0000000
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%inbounds = and i1 %positive, %withinmax
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%saturated = sext i1 %positive to i32
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%normal = fptoui float %v to i32
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%0 = select i1 %inbounds, i32 %normal, i32 %saturated
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%1 = uitofp i32 %0 to float
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ret float %1
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}
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; Function Attrs: nounwind
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define hidden i8 @main.f32tou8(float %v, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%positive = fcmp oge float %v, 0.000000e+00
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%withinmax = fcmp ole float %v, 2.550000e+02
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%inbounds = and i1 %positive, %withinmax
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%saturated = sext i1 %positive to i8
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%normal = fptoui float %v to i8
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%0 = select i1 %inbounds, i8 %normal, i8 %saturated
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ret i8 %0
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}
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; Function Attrs: nounwind
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define hidden i8 @main.f32toi8(float %v, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%abovemin = fcmp oge float %v, -1.280000e+02
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%belowmax = fcmp ole float %v, 1.270000e+02
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%inbounds = and i1 %abovemin, %belowmax
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%saturated = select i1 %abovemin, i8 127, i8 -128
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%isnan = fcmp uno float %v, 0.000000e+00
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%remapped = select i1 %isnan, i8 0, i8 %saturated
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%normal = fptosi float %v to i8
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%0 = select i1 %inbounds, i8 %normal, i8 %remapped
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ret i8 %0
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}
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attributes #0 = { nounwind }
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