[libcxx-commits] [clang-tools-extra] [libclc] [lld] [flang] [libcxx] [libunwind] [clang] [libcxxabi] [lldb] [libc] [llvm] [compiler-rt] [Legalizer] Soften EXTRACT_ELEMENT on ppcf128 (PR #77412)
Qiu Chaofan via libcxx-commits
libcxx-commits at lists.llvm.org
Tue Jan 9 23:05:43 PST 2024
https://github.com/ecnelises updated https://github.com/llvm/llvm-project/pull/77412
>From 87e1d4acdd87d45f265e590ad135e21f352dc5ad Mon Sep 17 00:00:00 2001
From: Qiu Chaofan <qiucofan at cn.ibm.com>
Date: Tue, 9 Jan 2024 13:33:56 +0800
Subject: [PATCH 1/3] [Legalizer] Soften EXTRACT_ELEMENT on ppcf128
ppc_fp128 values are always split into two f64. Implement soften
operation in soft-float mode to handle output f64 correctly.
---
.../CodeGen/SelectionDAG/LegalizeFloatTypes.cpp | 14 +++++++++++++-
llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h | 1 +
llvm/test/CodeGen/PowerPC/ppcsoftops.ll | 10 ++++++++++
3 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
index 6e0e1e23419bec..69759a7d6471f6 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
@@ -60,7 +60,9 @@ void DAGTypeLegalizer::SoftenFloatResult(SDNode *N, unsigned ResNo) {
#endif
report_fatal_error("Do not know how to soften the result of this "
"operator!");
-
+ case ISD::EXTRACT_ELEMENT:
+ R = SoftenFloatRes_EXTRACT_ELEMENT(N);
+ break;
case ISD::ARITH_FENCE: R = SoftenFloatRes_ARITH_FENCE(N); break;
case ISD::MERGE_VALUES:R = SoftenFloatRes_MERGE_VALUES(N, ResNo); break;
case ISD::BITCAST: R = SoftenFloatRes_BITCAST(N); break;
@@ -262,6 +264,16 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_ConstantFP(SDNode *N) {
}
}
+SDValue DAGTypeLegalizer::SoftenFloatRes_EXTRACT_ELEMENT(SDNode *N) {
+ SDValue Src = N->getOperand(0);
+ assert(Src.getValueType() == MVT::ppcf128 &&
+ Src.getOperand(0)->getOpcode() == ISD::BUILD_PAIR &&
+ "In floats only ppcf128 can be extracted by element!");
+ EVT DestVT = EVT::getIntegerVT(*DAG.getContext(), N->getValueSizeInBits(0));
+ return DAG.getNode(ISD::EXTRACT_ELEMENT, SDLoc(N), DestVT,
+ Src.getOperand(0), N->getOperand(1));
+}
+
SDValue DAGTypeLegalizer::SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N, unsigned ResNo) {
SDValue NewOp = BitConvertVectorToIntegerVector(N->getOperand(0));
return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, SDLoc(N),
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
index 09f0bca8b8611e..efe8ac536b63bd 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeTypes.h
@@ -541,6 +541,7 @@ class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
SDValue SoftenFloatRes_BITCAST(SDNode *N);
SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N);
SDValue SoftenFloatRes_ConstantFP(SDNode *N);
+ SDValue SoftenFloatRes_EXTRACT_ELEMENT(SDNode *N);
SDValue SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N, unsigned ResNo);
SDValue SoftenFloatRes_FABS(SDNode *N);
SDValue SoftenFloatRes_FMINNUM(SDNode *N);
diff --git a/llvm/test/CodeGen/PowerPC/ppcsoftops.ll b/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
index 0ee30f67c30f24..4c74798cf0ea5b 100644
--- a/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
+++ b/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
@@ -68,8 +68,18 @@ define dso_local zeroext i32 @func(double noundef %0, double noundef %1) #0 {
; CHECK-LABEL: __adddf3
}
+; To check ppc_fp128 soften without crash
+define zeroext i1 @ppcf128_soften(ppc_fp128 %a) #0 {
+entry:
+ %0 = tail call i1 @llvm.is.fpclass.ppcf128(ppc_fp128 %a, i32 100)
+ ret i1 %0
+
+ ; CHECK-LABEL: ppcf128_soften
+}
+
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1
+declare i1 @llvm.is.fpclass.ppcf128(ppc_fp128, i32 immarg) #1
attributes #0 = {"use-soft-float"="true" }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
>From 2a222d9adcd086b9b25724ed31ae1478100e334a Mon Sep 17 00:00:00 2001
From: Qiu Chaofan <qiucofan at cn.ibm.com>
Date: Wed, 10 Jan 2024 10:46:32 +0800
Subject: [PATCH 2/3] Use changeTypeToInteger
---
llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp | 5 ++---
llvm/test/CodeGen/PowerPC/ppcsoftops.ll | 4 ++--
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
index ecbf3ce94a3807..fac2a85e77b7b9 100644
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp
@@ -267,10 +267,9 @@ SDValue DAGTypeLegalizer::SoftenFloatRes_ConstantFP(SDNode *N) {
SDValue DAGTypeLegalizer::SoftenFloatRes_EXTRACT_ELEMENT(SDNode *N) {
SDValue Src = N->getOperand(0);
assert(Src.getValueType() == MVT::ppcf128 &&
- Src.getOperand(0)->getOpcode() == ISD::BUILD_PAIR &&
"In floats only ppcf128 can be extracted by element!");
- EVT DestVT = EVT::getIntegerVT(*DAG.getContext(), N->getValueSizeInBits(0));
- return DAG.getNode(ISD::EXTRACT_ELEMENT, SDLoc(N), DestVT,
+ return DAG.getNode(ISD::EXTRACT_ELEMENT, SDLoc(N),
+ N->getValueType(0).changeTypeToInteger(),
Src.getOperand(0), N->getOperand(1));
}
diff --git a/llvm/test/CodeGen/PowerPC/ppcsoftops.ll b/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
index 4c74798cf0ea5b..5a72ae4799ca7a 100644
--- a/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
+++ b/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
@@ -71,8 +71,8 @@ define dso_local zeroext i32 @func(double noundef %0, double noundef %1) #0 {
; To check ppc_fp128 soften without crash
define zeroext i1 @ppcf128_soften(ppc_fp128 %a) #0 {
entry:
- %0 = tail call i1 @llvm.is.fpclass.ppcf128(ppc_fp128 %a, i32 100)
- ret i1 %0
+ %fpclass = tail call i1 @llvm.is.fpclass.ppcf128(ppc_fp128 %a, i32 100)
+ ret i1 %fpclass
; CHECK-LABEL: ppcf128_soften
}
>From 665cef1fc5417c2d87ce766c7f2b50815d1dc2c1 Mon Sep 17 00:00:00 2001
From: Qiu Chaofan <qiucofan at cn.ibm.com>
Date: Wed, 10 Jan 2024 15:05:20 +0800
Subject: [PATCH 3/3] Regenerate the case
---
llvm/test/CodeGen/PowerPC/ppcsoftops.ll | 328 ++++++++++++++++++++++--
1 file changed, 311 insertions(+), 17 deletions(-)
diff --git a/llvm/test/CodeGen/PowerPC/ppcsoftops.ll b/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
index 5a72ae4799ca7a..f1a6aebbbe8b1d 100644
--- a/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
+++ b/llvm/test/CodeGen/PowerPC/ppcsoftops.ll
@@ -1,9 +1,52 @@
-; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -O0 < %s | FileCheck %s
-; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -O0 < %s | FileCheck %s
-; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -O0 < %s | FileCheck %s
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
+; RUN: llc -verify-machineinstrs -mtriple=powerpc-unknown-linux-gnu -O0 < %s | FileCheck %s --check-prefix=PPC
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -O0 < %s | FileCheck %s --check-prefix=PPC64
+; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -O0 < %s | FileCheck %s --check-prefix=PPC64LE
; Testing operations in soft-float mode
define double @foo() #0 {
+; PPC-LABEL: foo:
+; PPC: # %bb.0: # %entry
+; PPC-NEXT: mflr 0
+; PPC-NEXT: stwu 1, -32(1)
+; PPC-NEXT: stw 0, 36(1)
+; PPC-NEXT: lwz 3, 24(1)
+; PPC-NEXT: lwz 4, 28(1)
+; PPC-NEXT: lwz 5, 16(1)
+; PPC-NEXT: lwz 6, 20(1)
+; PPC-NEXT: bl __adddf3
+; PPC-NEXT: lwz 0, 36(1)
+; PPC-NEXT: addi 1, 1, 32
+; PPC-NEXT: mtlr 0
+; PPC-NEXT: blr
+;
+; PPC64-LABEL: foo:
+; PPC64: # %bb.0: # %entry
+; PPC64-NEXT: mflr 0
+; PPC64-NEXT: stdu 1, -128(1)
+; PPC64-NEXT: std 0, 144(1)
+; PPC64-NEXT: ld 3, 120(1)
+; PPC64-NEXT: ld 4, 112(1)
+; PPC64-NEXT: bl __adddf3
+; PPC64-NEXT: nop
+; PPC64-NEXT: addi 1, 1, 128
+; PPC64-NEXT: ld 0, 16(1)
+; PPC64-NEXT: mtlr 0
+; PPC64-NEXT: blr
+;
+; PPC64LE-LABEL: foo:
+; PPC64LE: # %bb.0: # %entry
+; PPC64LE-NEXT: mflr 0
+; PPC64LE-NEXT: stdu 1, -48(1)
+; PPC64LE-NEXT: std 0, 64(1)
+; PPC64LE-NEXT: ld 3, 40(1)
+; PPC64LE-NEXT: ld 4, 32(1)
+; PPC64LE-NEXT: bl __adddf3
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: addi 1, 1, 48
+; PPC64LE-NEXT: ld 0, 16(1)
+; PPC64LE-NEXT: mtlr 0
+; PPC64LE-NEXT: blr
entry:
%a = alloca double, align 8
%b = alloca double, align 8
@@ -11,11 +54,51 @@ entry:
%1 = load double, ptr %b, align 8
%add = fadd double %0, %1
ret double %add
-
- ; CHECK-LABEL: __adddf3
}
define double @foo1() #0 {
+; PPC-LABEL: foo1:
+; PPC: # %bb.0: # %entry
+; PPC-NEXT: mflr 0
+; PPC-NEXT: stwu 1, -32(1)
+; PPC-NEXT: stw 0, 36(1)
+; PPC-NEXT: lwz 3, 24(1)
+; PPC-NEXT: lwz 4, 28(1)
+; PPC-NEXT: lwz 5, 16(1)
+; PPC-NEXT: lwz 6, 20(1)
+; PPC-NEXT: bl __muldf3
+; PPC-NEXT: lwz 0, 36(1)
+; PPC-NEXT: addi 1, 1, 32
+; PPC-NEXT: mtlr 0
+; PPC-NEXT: blr
+;
+; PPC64-LABEL: foo1:
+; PPC64: # %bb.0: # %entry
+; PPC64-NEXT: mflr 0
+; PPC64-NEXT: stdu 1, -128(1)
+; PPC64-NEXT: std 0, 144(1)
+; PPC64-NEXT: ld 3, 120(1)
+; PPC64-NEXT: ld 4, 112(1)
+; PPC64-NEXT: bl __muldf3
+; PPC64-NEXT: nop
+; PPC64-NEXT: addi 1, 1, 128
+; PPC64-NEXT: ld 0, 16(1)
+; PPC64-NEXT: mtlr 0
+; PPC64-NEXT: blr
+;
+; PPC64LE-LABEL: foo1:
+; PPC64LE: # %bb.0: # %entry
+; PPC64LE-NEXT: mflr 0
+; PPC64LE-NEXT: stdu 1, -48(1)
+; PPC64LE-NEXT: std 0, 64(1)
+; PPC64LE-NEXT: ld 3, 40(1)
+; PPC64LE-NEXT: ld 4, 32(1)
+; PPC64LE-NEXT: bl __muldf3
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: addi 1, 1, 48
+; PPC64LE-NEXT: ld 0, 16(1)
+; PPC64LE-NEXT: mtlr 0
+; PPC64LE-NEXT: blr
entry:
%a = alloca double, align 8
%b = alloca double, align 8
@@ -23,11 +106,51 @@ entry:
%1 = load double, ptr %b, align 8
%mul = fmul double %0, %1
ret double %mul
-
- ; CHECK-LABEL: __muldf3
}
define double @foo2() #0 {
+; PPC-LABEL: foo2:
+; PPC: # %bb.0: # %entry
+; PPC-NEXT: mflr 0
+; PPC-NEXT: stwu 1, -32(1)
+; PPC-NEXT: stw 0, 36(1)
+; PPC-NEXT: lwz 3, 24(1)
+; PPC-NEXT: lwz 4, 28(1)
+; PPC-NEXT: lwz 5, 16(1)
+; PPC-NEXT: lwz 6, 20(1)
+; PPC-NEXT: bl __subdf3
+; PPC-NEXT: lwz 0, 36(1)
+; PPC-NEXT: addi 1, 1, 32
+; PPC-NEXT: mtlr 0
+; PPC-NEXT: blr
+;
+; PPC64-LABEL: foo2:
+; PPC64: # %bb.0: # %entry
+; PPC64-NEXT: mflr 0
+; PPC64-NEXT: stdu 1, -128(1)
+; PPC64-NEXT: std 0, 144(1)
+; PPC64-NEXT: ld 3, 120(1)
+; PPC64-NEXT: ld 4, 112(1)
+; PPC64-NEXT: bl __subdf3
+; PPC64-NEXT: nop
+; PPC64-NEXT: addi 1, 1, 128
+; PPC64-NEXT: ld 0, 16(1)
+; PPC64-NEXT: mtlr 0
+; PPC64-NEXT: blr
+;
+; PPC64LE-LABEL: foo2:
+; PPC64LE: # %bb.0: # %entry
+; PPC64LE-NEXT: mflr 0
+; PPC64LE-NEXT: stdu 1, -48(1)
+; PPC64LE-NEXT: std 0, 64(1)
+; PPC64LE-NEXT: ld 3, 40(1)
+; PPC64LE-NEXT: ld 4, 32(1)
+; PPC64LE-NEXT: bl __subdf3
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: addi 1, 1, 48
+; PPC64LE-NEXT: ld 0, 16(1)
+; PPC64LE-NEXT: mtlr 0
+; PPC64LE-NEXT: blr
entry:
%a = alloca double, align 8
%b = alloca double, align 8
@@ -35,11 +158,51 @@ entry:
%1 = load double, ptr %b, align 8
%sub = fsub double %0, %1
ret double %sub
-
- ; CHECK-LABEL: __subdf3
}
define double @foo3() #0 {
+; PPC-LABEL: foo3:
+; PPC: # %bb.0: # %entry
+; PPC-NEXT: mflr 0
+; PPC-NEXT: stwu 1, -32(1)
+; PPC-NEXT: stw 0, 36(1)
+; PPC-NEXT: lwz 3, 24(1)
+; PPC-NEXT: lwz 4, 28(1)
+; PPC-NEXT: lwz 5, 16(1)
+; PPC-NEXT: lwz 6, 20(1)
+; PPC-NEXT: bl __divdf3
+; PPC-NEXT: lwz 0, 36(1)
+; PPC-NEXT: addi 1, 1, 32
+; PPC-NEXT: mtlr 0
+; PPC-NEXT: blr
+;
+; PPC64-LABEL: foo3:
+; PPC64: # %bb.0: # %entry
+; PPC64-NEXT: mflr 0
+; PPC64-NEXT: stdu 1, -128(1)
+; PPC64-NEXT: std 0, 144(1)
+; PPC64-NEXT: ld 3, 120(1)
+; PPC64-NEXT: ld 4, 112(1)
+; PPC64-NEXT: bl __divdf3
+; PPC64-NEXT: nop
+; PPC64-NEXT: addi 1, 1, 128
+; PPC64-NEXT: ld 0, 16(1)
+; PPC64-NEXT: mtlr 0
+; PPC64-NEXT: blr
+;
+; PPC64LE-LABEL: foo3:
+; PPC64LE: # %bb.0: # %entry
+; PPC64LE-NEXT: mflr 0
+; PPC64LE-NEXT: stdu 1, -48(1)
+; PPC64LE-NEXT: std 0, 64(1)
+; PPC64LE-NEXT: ld 3, 40(1)
+; PPC64LE-NEXT: ld 4, 32(1)
+; PPC64LE-NEXT: bl __divdf3
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: addi 1, 1, 48
+; PPC64LE-NEXT: ld 0, 16(1)
+; PPC64LE-NEXT: mtlr 0
+; PPC64LE-NEXT: blr
entry:
%a = alloca double, align 8
%b = alloca double, align 8
@@ -47,12 +210,96 @@ entry:
%1 = load double, ptr %b, align 8
%div = fdiv double %0, %1
ret double %div
-
- ; CHECK-LABEL: __divdf3
}
; Function Attrs: noinline nounwind optnone uwtable
define dso_local zeroext i32 @func(double noundef %0, double noundef %1) #0 {
+; PPC-LABEL: func:
+; PPC: # %bb.0:
+; PPC-NEXT: mflr 0
+; PPC-NEXT: stwu 1, -32(1)
+; PPC-NEXT: stw 0, 36(1)
+; PPC-NEXT: # kill: def $r7 killed $r6
+; PPC-NEXT: # kill: def $r7 killed $r5
+; PPC-NEXT: # kill: def $r7 killed $r4
+; PPC-NEXT: # kill: def $r7 killed $r3
+; PPC-NEXT: stw 4, 28(1)
+; PPC-NEXT: stw 3, 24(1)
+; PPC-NEXT: stw 6, 20(1)
+; PPC-NEXT: stw 5, 16(1)
+; PPC-NEXT: lwz 3, 24(1)
+; PPC-NEXT: stw 3, 8(1) # 4-byte Folded Spill
+; PPC-NEXT: lwz 3, 28(1)
+; PPC-NEXT: stw 3, 12(1) # 4-byte Folded Spill
+; PPC-NEXT: lwz 3, 16(1)
+; PPC-NEXT: lwz 4, 20(1)
+; PPC-NEXT: lis 5, -15888
+; PPC-NEXT: li 6, 0
+; PPC-NEXT: bl __muldf3
+; PPC-NEXT: mr 5, 3
+; PPC-NEXT: lwz 3, 8(1) # 4-byte Folded Reload
+; PPC-NEXT: mr 6, 4
+; PPC-NEXT: lwz 4, 12(1) # 4-byte Folded Reload
+; PPC-NEXT: bl __adddf3
+; PPC-NEXT: bl __fixunsdfsi
+; PPC-NEXT: lwz 0, 36(1)
+; PPC-NEXT: addi 1, 1, 32
+; PPC-NEXT: mtlr 0
+; PPC-NEXT: blr
+;
+; PPC64-LABEL: func:
+; PPC64: # %bb.0:
+; PPC64-NEXT: mflr 0
+; PPC64-NEXT: stdu 1, -144(1)
+; PPC64-NEXT: std 0, 160(1)
+; PPC64-NEXT: std 3, 136(1)
+; PPC64-NEXT: std 4, 128(1)
+; PPC64-NEXT: ld 3, 136(1)
+; PPC64-NEXT: std 3, 120(1) # 8-byte Folded Spill
+; PPC64-NEXT: ld 3, 128(1)
+; PPC64-NEXT: li 4, 3103
+; PPC64-NEXT: rldic 4, 4, 52, 0
+; PPC64-NEXT: bl __muldf3
+; PPC64-NEXT: nop
+; PPC64-NEXT: mr 4, 3
+; PPC64-NEXT: ld 3, 120(1) # 8-byte Folded Reload
+; PPC64-NEXT: bl __adddf3
+; PPC64-NEXT: nop
+; PPC64-NEXT: bl __fixunsdfsi
+; PPC64-NEXT: nop
+; PPC64-NEXT: # kill: def $r3 killed $r3 killed $x3
+; PPC64-NEXT: clrldi 3, 3, 32
+; PPC64-NEXT: addi 1, 1, 144
+; PPC64-NEXT: ld 0, 16(1)
+; PPC64-NEXT: mtlr 0
+; PPC64-NEXT: blr
+;
+; PPC64LE-LABEL: func:
+; PPC64LE: # %bb.0:
+; PPC64LE-NEXT: mflr 0
+; PPC64LE-NEXT: stdu 1, -64(1)
+; PPC64LE-NEXT: std 0, 80(1)
+; PPC64LE-NEXT: std 3, 56(1)
+; PPC64LE-NEXT: std 4, 48(1)
+; PPC64LE-NEXT: ld 3, 56(1)
+; PPC64LE-NEXT: std 3, 40(1) # 8-byte Folded Spill
+; PPC64LE-NEXT: ld 3, 48(1)
+; PPC64LE-NEXT: li 4, 3103
+; PPC64LE-NEXT: rldic 4, 4, 52, 0
+; PPC64LE-NEXT: bl __muldf3
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: mr 4, 3
+; PPC64LE-NEXT: ld 3, 40(1) # 8-byte Folded Reload
+; PPC64LE-NEXT: bl __adddf3
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: bl __fixunsdfsi
+; PPC64LE-NEXT: nop
+; PPC64LE-NEXT: # kill: def $r3 killed $r3 killed $x3
+; PPC64LE-NEXT: clrldi 3, 3, 32
+; PPC64LE-NEXT: addi 1, 1, 64
+; PPC64LE-NEXT: ld 0, 16(1)
+; PPC64LE-NEXT: mtlr 0
+; PPC64LE-NEXT: blr
%3 = alloca double, align 8
%4 = alloca double, align 8
store double %0, ptr %3, align 8
@@ -63,23 +310,70 @@ define dso_local zeroext i32 @func(double noundef %0, double noundef %1) #0 {
%8 = call double @llvm.fmuladd.f64(double %7, double 0x41F0000000000000, double %5)
%9 = fptoui double %8 to i32
ret i32 %9
-
- ; CHECK-LABEL: __muldf3
- ; CHECK-LABEL: __adddf3
}
; To check ppc_fp128 soften without crash
define zeroext i1 @ppcf128_soften(ppc_fp128 %a) #0 {
+; PPC-LABEL: ppcf128_soften:
+; PPC: # %bb.0: # %entry
+; PPC-NEXT: stwu 1, -16(1)
+; PPC-NEXT: stw 5, 8(1) # 4-byte Folded Spill
+; PPC-NEXT: mr 5, 4
+; PPC-NEXT: lwz 4, 8(1) # 4-byte Folded Reload
+; PPC-NEXT: stw 5, 12(1) # 4-byte Folded Spill
+; PPC-NEXT: mr 5, 3
+; PPC-NEXT: lwz 3, 12(1) # 4-byte Folded Reload
+; PPC-NEXT: # kill: def $r4 killed $r3
+; PPC-NEXT: # kill: def $r4 killed $r5
+; PPC-NEXT: xoris 4, 5, 65520
+; PPC-NEXT: or 4, 3, 4
+; PPC-NEXT: cntlzw 4, 4
+; PPC-NEXT: clrlwi 5, 5, 1
+; PPC-NEXT: or 3, 3, 5
+; PPC-NEXT: cntlzw 3, 3
+; PPC-NEXT: or 3, 3, 4
+; PPC-NEXT: srwi 3, 3, 5
+; PPC-NEXT: addi 1, 1, 16
+; PPC-NEXT: blr
+;
+; PPC64-LABEL: ppcf128_soften:
+; PPC64: # %bb.0: # %entry
+; PPC64-NEXT: li 4, 4095
+; PPC64-NEXT: rldic 4, 4, 52, 0
+; PPC64-NEXT: cmpld 7, 3, 4
+; PPC64-NEXT: mfcr 4 # cr7
+; PPC64-NEXT: rlwinm 4, 4, 31, 31, 31
+; PPC64-NEXT: clrldi 3, 3, 1
+; PPC64-NEXT: cmpldi 7, 3, 0
+; PPC64-NEXT: mfcr 3 # cr7
+; PPC64-NEXT: rlwinm 3, 3, 31, 31, 31
+; PPC64-NEXT: or 4, 3, 4
+; PPC64-NEXT: # implicit-def: $x3
+; PPC64-NEXT: mr 3, 4
+; PPC64-NEXT: clrldi 3, 3, 32
+; PPC64-NEXT: blr
+;
+; PPC64LE-LABEL: ppcf128_soften:
+; PPC64LE: # %bb.0: # %entry
+; PPC64LE-NEXT: li 3, 4095
+; PPC64LE-NEXT: rldic 3, 3, 52, 0
+; PPC64LE-NEXT: cmpd 4, 3
+; PPC64LE-NEXT: crmove 21, 2
+; PPC64LE-NEXT: clrldi. 3, 4, 1
+; PPC64LE-NEXT: crmove 20, 2
+; PPC64LE-NEXT: cror 20, 20, 21
+; PPC64LE-NEXT: li 4, 0
+; PPC64LE-NEXT: li 3, 1
+; PPC64LE-NEXT: isel 3, 3, 4, 20
+; PPC64LE-NEXT: blr
entry:
%fpclass = tail call i1 @llvm.is.fpclass.ppcf128(ppc_fp128 %a, i32 100)
ret i1 %fpclass
-
- ; CHECK-LABEL: ppcf128_soften
}
; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1
declare i1 @llvm.is.fpclass.ppcf128(ppc_fp128, i32 immarg) #1
-attributes #0 = {"use-soft-float"="true" }
+attributes #0 = {"use-soft-float"="true" nounwind }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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