[llvm] [RISCV][GISel] Add ZFA FP legalization and full tests for 9 insn (PR #118723)
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Wed Dec 4 16:59:54 PST 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-globalisel
Author: Luke Quinn (lquinn2015)
<details>
<summary>Changes</summary>
---
Full diff: https://github.com/llvm/llvm-project/pull/118723.diff
4 Files Affected:
- (modified) llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp (+5-2)
- (added) llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f16.ll (+78)
- (added) llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f32.ll (+79)
- (added) llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f64.ll (+79)
``````````diff
diff --git a/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp b/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
index 456ca9894e6a7d..be5a3364948071 100644
--- a/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
+++ b/llvm/lib/Target/RISCV/GISel/RISCVLegalizerInfo.cpp
@@ -582,10 +582,13 @@ RISCVLegalizerInfo::RISCVLegalizerInfo(const RISCVSubtarget &ST)
.libcallFor(ST.is64Bit(), {{s32, s128}, {s64, s128}});
// FIXME: We can do custom inline expansion like SelectionDAG.
- // FIXME: Legal with Zfa.
getActionDefinitionsBuilder({G_FCEIL, G_FFLOOR, G_FRINT, G_FNEARBYINT,
G_INTRINSIC_TRUNC, G_INTRINSIC_ROUND,
- G_INTRINSIC_ROUNDEVEN})
+ G_INTRINSIC_ROUNDEVEN, G_FMAXIMUM, G_FMINIMUM})
+
+ .legalFor(ST.hasStdExtZfa() /*ST.hasStdExtF()*/, {s32})
+ .legalFor(ST.hasStdExtZfa() & ST.hasStdExtD() , {s64})
+ .legalFor(ST.hasStdExtZfa() & ST.hasStdExtZfh(), {s16})
.libcallFor({s32, s64});
getActionDefinitionsBuilder({G_FCOS, G_FSIN, G_FTAN, G_FPOW, G_FLOG, G_FLOG2,
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f16.ll b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f16.ll
new file mode 100644
index 00000000000000..7e8d6d8758c5e8
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f16.ll
@@ -0,0 +1,78 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+
+; RUN: llc -mtriple=riscv32 -mattr=+zfa,+zfh -global-isel < %s \
+; RUN: | FileCheck %s --check-prefixes=CHECK-ZFA-f16
+; RUN: llc -mtriple=riscv64 -mattr=+zfa,+zfh -global-isel < %s \
+; RUN: | FileCheck %s --check-prefixes=CHECK-ZFA-f16
+
+
+define half @fceil(half %a) {
+; CHECK-ZFA-f16-LABEL: fceil:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fround.h fa0, fa0, rup
+; CHECK-ZFA-f16-NEXT: ret
+ %b = call half @llvm.ceil.f16(half %a)
+ ret half %b
+}
+
+define half @ffloor(half %a) {
+; CHECK-ZFA-f16-LABEL: ffloor:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fround.h fa0, fa0, rdn
+; CHECK-ZFA-f16-NEXT: ret
+ %b = call half @llvm.floor.f16(half %a)
+ ret half %b
+}
+
+define half @frint(half %a) {
+; CHECK-ZFA-f16-LABEL: frint:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: froundnx.h fa0, fa0
+; CHECK-ZFA-f16-NEXT: ret
+ %b = call half @llvm.rint.f16(half %a)
+ ret half %b
+}
+
+define half @fnearbyint(half %a) {
+; CHECK-ZFA-f16-LABEL: fnearbyint:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fround.h fa0, fa0
+; CHECK-ZFA-f16-NEXT: ret
+ %b = call half @llvm.nearbyint.f16(half %a)
+ ret half %b
+}
+
+define half @fround(half %a) {
+; CHECK-ZFA-f16-LABEL: fround:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fround.h fa0, fa0, rmm
+; CHECK-ZFA-f16-NEXT: ret
+ %b = call half @llvm.round.f16(half %a)
+ ret half %b
+}
+
+define half @froundeven(half %a) {
+; CHECK-ZFA-f16-LABEL: froundeven:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fround.h fa0, fa0, rne
+; CHECK-ZFA-f16-NEXT: ret
+ %b = call half @llvm.roundeven.f16(half %a)
+ ret half %b
+}
+define half @fmaximum(half %a, half %b) {
+; CHECK-ZFA-f16-LABEL: fmaximum:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fmaxm.h fa0, fa0, fa1
+; CHECK-ZFA-f16-NEXT: ret
+ %c = call half @llvm.maximum.f16(half %a, half %b)
+ ret half %c
+}
+
+define half @fminimum(half %a, half %b) {
+; CHECK-ZFA-f16-LABEL: fminimum:
+; CHECK-ZFA-f16: # %bb.0:
+; CHECK-ZFA-f16-NEXT: fminm.h fa0, fa0, fa1
+; CHECK-ZFA-f16-NEXT: ret
+ %c = call half @llvm.minimum.f16(half %a, half %b)
+ ret half %c
+}
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f32.ll b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f32.ll
new file mode 100644
index 00000000000000..66c57518173bf3
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f32.ll
@@ -0,0 +1,79 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+
+; RUN: llc -mtriple=riscv32 -mattr=+zfa -global-isel < %s \
+; RUN: | FileCheck %s --check-prefixes=CHECK-ZFA-f32
+; RUN: llc -mtriple=riscv64 -mattr=+zfa -global-isel < %s \
+; RUN: | FileCheck %s --check-prefixes=CHECK-ZFA-f32
+
+
+define float @fceil(float %a) {
+; CHECK-ZFA-f32-LABEL: fceil:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fround.s fa0, fa0, rup
+; CHECK-ZFA-f32-NEXT: ret
+ %b = call float @llvm.ceil.f32(float %a)
+ ret float %b
+}
+
+define float @ffloor(float %a) {
+; CHECK-ZFA-f32-LABEL: ffloor:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fround.s fa0, fa0, rdn
+; CHECK-ZFA-f32-NEXT: ret
+ %b = call float @llvm.floor.f32(float %a)
+ ret float %b
+}
+
+define float @frint(float %a) {
+; CHECK-ZFA-f32-LABEL: frint:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: froundnx.s fa0, fa0
+; CHECK-ZFA-f32-NEXT: ret
+ %b = call float @llvm.rint.f32(float %a)
+ ret float %b
+}
+
+define float @fnearbyint(float %a) {
+; CHECK-ZFA-f32-LABEL: fnearbyint:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fround.s fa0, fa0
+; CHECK-ZFA-f32-NEXT: ret
+ %b = call float @llvm.nearbyint.f32(float %a)
+ ret float %b
+}
+
+define float @fround(float %a) {
+; CHECK-ZFA-f32-LABEL: fround:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fround.s fa0, fa0, rmm
+; CHECK-ZFA-f32-NEXT: ret
+ %b = call float @llvm.round.f32(float %a)
+ ret float %b
+}
+
+define float @fmaximum(float %a, float %b) {
+; CHECK-ZFA-f32-LABEL: fmaximum:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fmaxm.s fa0, fa0, fa1
+; CHECK-ZFA-f32-NEXT: ret
+ %c = call float @llvm.maximum.f32(float %a, float %b)
+ ret float %c
+}
+
+define float @fminimum(float %a, float %b) {
+; CHECK-ZFA-f32-LABEL: fminimum:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fminm.s fa0, fa0, fa1
+; CHECK-ZFA-f32-NEXT: ret
+ %c = call float @llvm.minimum.f32(float %a, float %b)
+ ret float %c
+}
+
+define float @froundeven(float %a) {
+; CHECK-ZFA-f32-LABEL: froundeven:
+; CHECK-ZFA-f32: # %bb.0:
+; CHECK-ZFA-f32-NEXT: fround.s fa0, fa0, rne
+; CHECK-ZFA-f32-NEXT: ret
+ %b = call float @llvm.roundeven.f32(float %a)
+ ret float %b
+}
diff --git a/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f64.ll b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f64.ll
new file mode 100644
index 00000000000000..b24303071e5648
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/GlobalISel/legalizer/legalize-zfa-f64.ll
@@ -0,0 +1,79 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+
+; RUN: llc -mtriple=riscv32 -mattr=+zfa,d -global-isel < %s \
+; RUN: | FileCheck %s --check-prefixes=CHECK-ZFA-f64
+; RUN: llc -mtriple=riscv64 -mattr=+zfa,d -global-isel < %s \
+; RUN: | FileCheck %s --check-prefixes=CHECK-ZFA-f64
+
+
+define double @fceil(double %a) {
+; CHECK-ZFA-f64-LABEL: fceil:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fround.d fa0, fa0, rup
+; CHECK-ZFA-f64-NEXT: ret
+ %b = call double @llvm.ceil.f64(double %a)
+ ret double %b
+}
+
+define double @ffloor(double %a) {
+; CHECK-ZFA-f64-LABEL: ffloor:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fround.d fa0, fa0, rdn
+; CHECK-ZFA-f64-NEXT: ret
+ %b = call double @llvm.floor.f64(double %a)
+ ret double %b
+}
+
+define double @frint(double %a) {
+; CHECK-ZFA-f64-LABEL: frint:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: froundnx.d fa0, fa0
+; CHECK-ZFA-f64-NEXT: ret
+ %b = call double @llvm.rint.f64(double %a)
+ ret double %b
+}
+
+define double @fnearbyint(double %a) {
+; CHECK-ZFA-f64-LABEL: fnearbyint:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fround.d fa0, fa0
+; CHECK-ZFA-f64-NEXT: ret
+ %b = call double @llvm.nearbyint.f64(double %a)
+ ret double %b
+}
+
+define double @fround(double %a) {
+; CHECK-ZFA-f64-LABEL: fround:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fround.d fa0, fa0, rmm
+; CHECK-ZFA-f64-NEXT: ret
+ %b = call double @llvm.round.f64(double %a)
+ ret double %b
+}
+
+define double @froundeven(double %a) {
+; CHECK-ZFA-f64-LABEL: froundeven:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fround.d fa0, fa0, rne
+; CHECK-ZFA-f64-NEXT: ret
+ %b = call double @llvm.roundeven.f64(double %a)
+ ret double %b
+}
+
+define double @fmaximum(double %a, double %b) {
+; CHECK-ZFA-f64-LABEL: fmaximum:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fmaxm.d fa0, fa0, fa1
+; CHECK-ZFA-f64-NEXT: ret
+ %c = call double @llvm.maximum.f64(double %a, double %b)
+ ret double %c
+}
+
+define double @fminimum(double %a, double %b) {
+; CHECK-ZFA-f64-LABEL: fminimum:
+; CHECK-ZFA-f64: # %bb.0:
+; CHECK-ZFA-f64-NEXT: fminm.d fa0, fa0, fa1
+; CHECK-ZFA-f64-NEXT: ret
+ %c = call double @llvm.minimum.f64(double %a, double %b)
+ ret double %c
+}
``````````
</details>
https://github.com/llvm/llvm-project/pull/118723
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