Skip to content

[Hexagon] Omit calls to specialized {float,fix} routines #117423

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jan 15, 2025
Merged

[Hexagon] Omit calls to specialized {float,fix} routines #117423

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 0 additions & 7 deletions llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1860,13 +1860,6 @@ HexagonTargetLowering::HexagonTargetLowering(const TargetMachine &TM,
setLibcallName(RTLIB::UREM_I32, "__hexagon_umodsi3");
setLibcallName(RTLIB::UREM_I64, "__hexagon_umoddi3");

setLibcallName(RTLIB::SINTTOFP_I128_F64, "__hexagon_floattidf");
setLibcallName(RTLIB::SINTTOFP_I128_F32, "__hexagon_floattisf");
setLibcallName(RTLIB::FPTOUINT_F32_I128, "__hexagon_fixunssfti");
setLibcallName(RTLIB::FPTOUINT_F64_I128, "__hexagon_fixunsdfti");
setLibcallName(RTLIB::FPTOSINT_F32_I128, "__hexagon_fixsfti");
setLibcallName(RTLIB::FPTOSINT_F64_I128, "__hexagon_fixdfti");

// This is the only fast library function for sqrtd.
if (FastMath)
setLibcallName(RTLIB::SQRT_F64, "__hexagon_fast2_sqrtdf2");
Expand Down
81 changes: 81 additions & 0 deletions llvm/test/CodeGen/Hexagon/i128-fpconv-strict.ll
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,81 @@
; RUN: llc < %s -mtriple=hexagon-unknown-linux-musl \
; RUN: | FileCheck %s -check-prefix=CHECK

define i64 @double_to_i128(double %d) nounwind strictfp {
; CHECK-LABEL: double_to_i128:
; CHECK: // %bb.0:
; CHECK: call __fixdfti
; CHECK: dealloc_return
%1 = tail call i128 @llvm.experimental.constrained.fptosi.i128.f64(double %d, metadata !"fpexcept.strict")
%2 = trunc i128 %1 to i64
ret i64 %2
}

define i64 @double_to_ui128(double %d) nounwind strictfp {
; CHECK-LABEL: double_to_ui128:
; CHECK: // %bb.0:
; CHECK: call __fixunsdfti
; CHECK: dealloc_return
%1 = tail call i128 @llvm.experimental.constrained.fptoui.i128.f64(double %d, metadata !"fpexcept.strict")
%2 = trunc i128 %1 to i64
ret i64 %2
}

define i64 @float_to_i128(float %d) nounwind strictfp {
; CHECK-LABEL: float_to_i128:
; CHECK: // %bb.0:
; CHECK: call __fixsfti
; CHECK: dealloc_return
%1 = tail call i128 @llvm.experimental.constrained.fptosi.i128.f32(float %d, metadata !"fpexcept.strict")
%2 = trunc i128 %1 to i64
ret i64 %2
}

define i64 @float_to_ui128(float %d) nounwind strictfp {
; CHECK-LABEL: float_to_ui128:
; CHECK: // %bb.0:
; CHECK: call __fixunssfti
; CHECK: dealloc_return
%1 = tail call i128 @llvm.experimental.constrained.fptoui.i128.f32(float %d, metadata !"fpexcept.strict")
%2 = trunc i128 %1 to i64
ret i64 %2
}

define double @ui128_to_double(ptr nocapture readonly %0) nounwind strictfp {
; CHECK-LABEL: ui128_to_double:
; CHECK: // %bb.0:
; CHECK: call __floatuntidf
; CHECK: dealloc_return
%2 = load i128, ptr %0, align 16
%3 = tail call double @llvm.experimental.constrained.uitofp.f64.i128(i128 %2, metadata !"round.dynamic", metadata !"fpexcept.strict")
ret double %3
}

define float @i128_to_float(ptr nocapture readonly %0) nounwind strictfp {
; CHECK-LABEL: i128_to_float:
; CHECK: // %bb.0:
; CHECK: call __floattisf
; CHECK: dealloc_return
%2 = load i128, ptr %0, align 16
%3 = tail call float @llvm.experimental.constrained.sitofp.f32.i128(i128 %2, metadata !"round.dynamic", metadata !"fpexcept.strict")
ret float %3
}

define float @ui128_to_float(ptr nocapture readonly %0) nounwind strictfp {
; CHECK-LABEL: ui128_to_float:
; CHECK: // %bb.0:
; CHECK: call __floatuntisf
; CHECK: dealloc_return
%2 = load i128, ptr %0, align 16
%3 = tail call float @llvm.experimental.constrained.uitofp.f32.i128(i128 %2, metadata !"round.dynamic", metadata !"fpexcept.strict")
ret float %3
}

declare i128 @llvm.experimental.constrained.fptosi.i128.f64(double, metadata)
declare i128 @llvm.experimental.constrained.fptoui.i128.f64(double, metadata)
declare i128 @llvm.experimental.constrained.fptosi.i128.f32(float, metadata)
declare i128 @llvm.experimental.constrained.fptoui.i128.f32(float, metadata)
declare double @llvm.experimental.constrained.sitofp.f64.i128(i128, metadata, metadata)
declare double @llvm.experimental.constrained.uitofp.f64.i128(i128, metadata, metadata)
declare float @llvm.experimental.constrained.sitofp.f32.i128(i128, metadata, metadata)
declare float @llvm.experimental.constrained.uitofp.f32.i128(i128, metadata, metadata)
Loading