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compiler: replace some math operation bodies with fast intrinsics

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Instead of changing the calls, replace the function bodies themselves.
This is useful for a number of reasons, see
https://github.com/tinygo-org/tinygo/pull/2920 for more information.

I have removed the math intrinsics tests because they are no longer
useful. Instead, I think `tinygo test math` should suffice.
This commit is contained in:
Ayke van Laethem
2022-08-28 18:52:51 +02:00
committed by Ron Evans
parent 4695da83b7
commit 20a7a6fd54
7 changed files with 38 additions and 127 deletions
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compiler/testdata/intrinsics-cortex-m-qemu.ll
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-36
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@@ -1,36 +0,0 @@
; ModuleID = 'intrinsics.go'
source_filename = "intrinsics.go"
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv7m-unknown-unknown-eabi"
declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*) #0
; Function Attrs: nounwind
define hidden void @main.init(i8* %context) unnamed_addr #1 {
entry:
ret void
}
; Function Attrs: nounwind
define hidden double @main.mySqrt(double %x, i8* %context) unnamed_addr #1 {
entry:
%0 = call double @llvm.sqrt.f64(double %x)
ret double %0
}
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare double @llvm.sqrt.f64(double) #2
; Function Attrs: nounwind
define hidden double @main.myTrunc(double %x, i8* %context) unnamed_addr #1 {
entry:
%0 = call double @llvm.trunc.f64(double %x)
ret double %0
}
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare double @llvm.trunc.f64(double) #2
attributes #0 = { "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #1 = { nounwind "target-features"="+armv7-m,+hwdiv,+soft-float,+strict-align,+thumb-mode,-aes,-bf16,-cdecp0,-cdecp1,-cdecp2,-cdecp3,-cdecp4,-cdecp5,-cdecp6,-cdecp7,-crc,-crypto,-d32,-dotprod,-dsp,-fp-armv8,-fp-armv8d16,-fp-armv8d16sp,-fp-armv8sp,-fp16,-fp16fml,-fp64,-fpregs,-fullfp16,-hwdiv-arm,-i8mm,-lob,-mve,-mve.fp,-neon,-pacbti,-ras,-sb,-sha2,-vfp2,-vfp2sp,-vfp3,-vfp3d16,-vfp3d16sp,-vfp3sp,-vfp4,-vfp4d16,-vfp4d16sp,-vfp4sp" }
attributes #2 = { nofree nosync nounwind readnone speculatable willreturn }
compiler/testdata/intrinsics-wasm.ll
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-38
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@@ -1,38 +0,0 @@
; ModuleID = 'intrinsics.go'
source_filename = "intrinsics.go"
target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128-ni:1:10:20"
target triple = "wasm32-unknown-wasi"
declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*) #0
declare void @runtime.trackPointer(i8* nocapture readonly, i8*) #0
; Function Attrs: nounwind
define hidden void @main.init(i8* %context) unnamed_addr #1 {
entry:
ret void
}
; Function Attrs: nounwind
define hidden double @main.mySqrt(double %x, i8* %context) unnamed_addr #1 {
entry:
%0 = call double @llvm.sqrt.f64(double %x)
ret double %0
}
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare double @llvm.sqrt.f64(double) #2
; Function Attrs: nounwind
define hidden double @main.myTrunc(double %x, i8* %context) unnamed_addr #1 {
entry:
%0 = call double @llvm.trunc.f64(double %x)
ret double %0
}
; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
declare double @llvm.trunc.f64(double) #2
attributes #0 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #1 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #2 = { nofree nosync nounwind readnone speculatable willreturn }
compiler/testdata/intrinsics.go
Vendored
-14
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@@ -1,14 +0,0 @@
package main
// Test how intrinsics are lowered: either as regular calls to the math
// functions or as LLVM builtins (such as llvm.sqrt.f64).
import "math"
func mySqrt(x float64) float64 {
return math.Sqrt(x)
}
func myTrunc(x float64) float64 {
return math.Trunc(x)
}