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llvm-project/llvm/test/CodeGen/ARM/sincos.ll

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Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
; RUN: llc < %s -mtriple=armv7-apple-ios6 -mcpu=cortex-a8 | FileCheck %s --check-prefix=NOOPT
; RUN: llc < %s -mtriple=armv7-apple-ios7 -mcpu=cortex-a8 | FileCheck %s --check-prefix=SINCOS
[SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno Summary: This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU target triples. This optimization was being inhibited when -ffast-math wasn't set because sincos in GLibC does not set errno, while sin and cos do. However, this optimization will only run if the attributes on the sin/cos calls include readnone, which is how clang represents the fact that it doesn't care about the errno values set by these functions (via the -fno-math-errno flag). Reviewers: hfinkel, bogner Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond Differential Revision: https://reviews.llvm.org/D32921 llvm-svn: 305204
2017-06-13 01:15:41 +08:00
; RUN: llc < %s -mtriple=armv7-linux-gnu -mcpu=cortex-a8 | FileCheck %s --check-prefix=SINCOS-GNU
[arm+x86] Make GNU variants behave like GNU w.r.t combining sin+cos into sincos. Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
2016-06-21 20:29:03 +08:00
; RUN: llc < %s -mtriple=armv7-linux-gnueabi -mcpu=cortex-a8 \
; RUN: --enable-unsafe-fp-math | FileCheck %s --check-prefix=SINCOS-GNU
Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
[SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno Summary: This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU target triples. This optimization was being inhibited when -ffast-math wasn't set because sincos in GLibC does not set errno, while sin and cos do. However, this optimization will only run if the attributes on the sin/cos calls include readnone, which is how clang represents the fact that it doesn't care about the errno values set by these functions (via the -fno-math-errno flag). Reviewers: hfinkel, bogner Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond Differential Revision: https://reviews.llvm.org/D32921 llvm-svn: 305204
2017-06-13 01:15:41 +08:00
; Combine sin / cos into a single call unless they may write errno (as
; captured by readnone attrbiute, controlled by clang -fmath-errno
; setting).
Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
; rdar://12856873
define float @test1(float %x) nounwind {
entry:
; SINCOS-LABEL: test1:
; SINCOS: bl ___sincosf_stret
[arm+x86] Make GNU variants behave like GNU w.r.t combining sin+cos into sincos. Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
2016-06-21 20:29:03 +08:00
; SINCOS-GNU-LABEL: test1:
; SINCOS-GNU: bl sincosf
Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
; NOOPT-LABEL: test1:
; NOOPT: bl _sinf
; NOOPT: bl _cosf
[arm+x86] Make GNU variants behave like GNU w.r.t combining sin+cos into sincos. Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
2016-06-21 20:29:03 +08:00
[SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno Summary: This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU target triples. This optimization was being inhibited when -ffast-math wasn't set because sincos in GLibC does not set errno, while sin and cos do. However, this optimization will only run if the attributes on the sin/cos calls include readnone, which is how clang represents the fact that it doesn't care about the errno values set by these functions (via the -fno-math-errno flag). Reviewers: hfinkel, bogner Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond Differential Revision: https://reviews.llvm.org/D32921 llvm-svn: 305204
2017-06-13 01:15:41 +08:00
%call = tail call float @sinf(float %x) readnone
%call1 = tail call float @cosf(float %x) readnone
%add = fadd float %call, %call1
ret float %add
}
define float @test1_errno(float %x) nounwind {
entry:
; SINCOS-LABEL: test1_errno:
; SINCOS: bl _sinf
; SINCOS: bl _cosf
[arm+x86] Make GNU variants behave like GNU w.r.t combining sin+cos into sincos. Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
2016-06-21 20:29:03 +08:00
[SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno Summary: This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU target triples. This optimization was being inhibited when -ffast-math wasn't set because sincos in GLibC does not set errno, while sin and cos do. However, this optimization will only run if the attributes on the sin/cos calls include readnone, which is how clang represents the fact that it doesn't care about the errno values set by these functions (via the -fno-math-errno flag). Reviewers: hfinkel, bogner Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond Differential Revision: https://reviews.llvm.org/D32921 llvm-svn: 305204
2017-06-13 01:15:41 +08:00
; SINCOS-GNU-LABEL: test1_errno:
; SINCOS-GNU: bl sinf
; SINCOS-GNU: bl cosf
; NOOPT-LABEL: test1_errno:
; NOOPT: bl _sinf
; NOOPT: bl _cosf
%call = tail call float @sinf(float %x)
%call1 = tail call float @cosf(float %x)
Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
%add = fadd float %call, %call1
ret float %add
}
define double @test2(double %x) nounwind {
entry:
; SINCOS-LABEL: test2:
; SINCOS: bl ___sincos_stret
[arm+x86] Make GNU variants behave like GNU w.r.t combining sin+cos into sincos. Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
2016-06-21 20:29:03 +08:00
; SINCOS-GNU-LABEL: test2:
; SINCOS-GNU: bl sincos
Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
; NOOPT-LABEL: test2:
; NOOPT: bl _sin
; NOOPT: bl _cos
[arm+x86] Make GNU variants behave like GNU w.r.t combining sin+cos into sincos. Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
2016-06-21 20:29:03 +08:00
[SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno Summary: This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU target triples. This optimization was being inhibited when -ffast-math wasn't set because sincos in GLibC does not set errno, while sin and cos do. However, this optimization will only run if the attributes on the sin/cos calls include readnone, which is how clang represents the fact that it doesn't care about the errno values set by these functions (via the -fno-math-errno flag). Reviewers: hfinkel, bogner Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond Differential Revision: https://reviews.llvm.org/D32921 llvm-svn: 305204
2017-06-13 01:15:41 +08:00
%call = tail call double @sin(double %x) readnone
%call1 = tail call double @cos(double %x) readnone
%add = fadd double %call, %call1
ret double %add
}
define double @test2_errno(double %x) nounwind {
entry:
; SINCOS-LABEL: test2_errno:
; SINCOS: bl _sin
; SINCOS: bl _cos
; SINCOS-GNU-LABEL: test2_errno:
; SINCOS-GNU: bl sin
; SINCOS-GNU: bl cos
; NOOPT-LABEL: test2_errno:
; NOOPT: bl _sin
; NOOPT: bl _cos
%call = tail call double @sin(double %x)
%call1 = tail call double @cos(double %x)
Enable optimization of sin / cos pair into call to __sincos_stret for iOS7+. rdar://12856873 Patch by Evan Cheng, with a fix for rdar://13209539 by Tilmann Scheller llvm-svn: 193942
2013-11-03 14:14:38 +08:00
%add = fadd double %call, %call1
ret double %add
}
[SelectionDAG] Allow sin/cos -> sincos optimization on GNU triples w/ just -fno-math-errno Summary: This change enables the sin(x) cos(x) -> sincos(x) optimization on GNU target triples. This optimization was being inhibited when -ffast-math wasn't set because sincos in GLibC does not set errno, while sin and cos do. However, this optimization will only run if the attributes on the sin/cos calls include readnone, which is how clang represents the fact that it doesn't care about the errno values set by these functions (via the -fno-math-errno flag). Reviewers: hfinkel, bogner Subscribers: mcrosier, javed.absar, llvm-commits, paul.redmond Differential Revision: https://reviews.llvm.org/D32921 llvm-svn: 305204
2017-06-13 01:15:41 +08:00
declare float @sinf(float)
declare double @sin(double)
declare float @cosf(float)
declare double @cos(double)