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[Windows] Allow legalizing LDEXP_F128 and FREXP_F128 with libcalls #148326

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fd1fb1b
[Windows] Allow legalizing LDEXP_F128 and FREXP_F128 with libcalls
tgross35 Jul 12, 2025
81961ef
Update test without cfi
tgross35 Jul 12, 2025
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2 changes: 0 additions & 2 deletions llvm/lib/IR/RuntimeLibcalls.cpp
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Expand Up @@ -206,12 +206,10 @@ void RuntimeLibcallsInfo::initLibcalls(const Triple &TT,
if (TT.isOSWindows() && !TT.isOSCygMing()) {
setLibcallImpl(RTLIB::LDEXP_F32, RTLIB::Unsupported);
setLibcallImpl(RTLIB::LDEXP_F80, RTLIB::Unsupported);
setLibcallImpl(RTLIB::LDEXP_F128, RTLIB::Unsupported);
setLibcallImpl(RTLIB::LDEXP_PPCF128, RTLIB::Unsupported);

setLibcallImpl(RTLIB::FREXP_F32, RTLIB::Unsupported);
setLibcallImpl(RTLIB::FREXP_F80, RTLIB::Unsupported);
setLibcallImpl(RTLIB::FREXP_F128, RTLIB::Unsupported);
setLibcallImpl(RTLIB::FREXP_PPCF128, RTLIB::Unsupported);
}

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13 changes: 13 additions & 0 deletions llvm/test/CodeGen/AArch64/ldexp.ll
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Expand Up @@ -147,4 +147,17 @@ entry:
ret half %0
}

define fp128 @testExpf128(fp128 %val, i32 %a) {
; SVE-LABEL: testExpf128:
; SVE: // %bb.0: // %entry
; SVE-NEXT: b ldexpl
;
; WINDOWS-LABEL: testExpf128:
; WINDOWS: // %bb.0: // %entry
; WINDOWS-NEXT: b ldexpl
entry:
%ldexp = call fp128 @llvm.ldexp.f128.i32(fp128 %val, i32 %a)
ret fp128 %ldexp
}

declare half @llvm.ldexp.f16.i32(half, i32) memory(none)
67 changes: 67 additions & 0 deletions llvm/test/CodeGen/AArch64/llvm.frexp.ll
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Expand Up @@ -1131,6 +1131,73 @@ define <2 x i32> @test_frexp_v2f64_v2i32_only_use_exp(<2 x double> %a) nounwind
ret <2 x i32> %result.1
}


define { fp128, i32 } @test_frexp_f128_i32(fp128 %a) nounwind {
; CHECK-LABEL: test_frexp_f128_i32:
; CHECK: // %bb.0:
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: add x0, sp, #12
; CHECK-NEXT: bl frexpl
; CHECK-NEXT: ldr w0, [sp, #12]
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
;
; WINDOWS-LABEL: test_frexp_f128_i32:
; WINDOWS: // %bb.0:
; WINDOWS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; WINDOWS-NEXT: add x0, sp, #12
; WINDOWS-NEXT: bl frexpl
; WINDOWS-NEXT: ldr w0, [sp, #12]
; WINDOWS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; WINDOWS-NEXT: ret
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
ret { fp128, i32 } %result
}

define fp128 @test_frexp_f128_i32_only_use_fract(fp128 %a) nounwind {
; CHECK-LABEL: test_frexp_f128_i32_only_use_fract:
; CHECK: // %bb.0:
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: add x0, sp, #12
; CHECK-NEXT: bl frexpl
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
;
; WINDOWS-LABEL: test_frexp_f128_i32_only_use_fract:
; WINDOWS: // %bb.0:
; WINDOWS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; WINDOWS-NEXT: add x0, sp, #12
; WINDOWS-NEXT: bl frexpl
; WINDOWS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; WINDOWS-NEXT: ret
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
%result.0 = extractvalue { fp128, i32 } %result, 0
ret fp128 %result.0
}

define i32 @test_frexp_f128_i32_only_use_exp(fp128 %a) nounwind {
; CHECK-LABEL: test_frexp_f128_i32_only_use_exp:
; CHECK: // %bb.0:
; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT: add x0, sp, #12
; CHECK-NEXT: bl frexpl
; CHECK-NEXT: ldr w0, [sp, #12]
; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT: ret
;
; WINDOWS-LABEL: test_frexp_f128_i32_only_use_exp:
; WINDOWS: // %bb.0:
; WINDOWS-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
; WINDOWS-NEXT: add x0, sp, #12
; WINDOWS-NEXT: bl frexpl
; WINDOWS-NEXT: ldr w0, [sp, #12]
; WINDOWS-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
; WINDOWS-NEXT: ret
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
%result.0 = extractvalue { fp128, i32 } %result, 1
ret i32 %result.0
}

declare { float, i32 } @llvm.frexp.f32.i32(float) #0
declare { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float>) #0
declare { <4 x float>, <4 x i32> } @llvm.frexp.v4f32.v4i32(<4 x float>) #0
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8 changes: 8 additions & 0 deletions llvm/test/CodeGen/ARM/ldexp.ll
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Expand Up @@ -55,4 +55,12 @@ entry:
ret half %0
}

define fp128 @testExpf128(fp128 %val, i32 %a) {
; LINUX: bl ldexpl
; WINDOWS: bl ldexpl
entry:
%0 = tail call fp128 @llvm.ldexp.f128.i32(fp128 %val, i32 %a)
ret fp128 %0
}

declare half @llvm.ldexp.f16.i32(half, i32) memory(none)
53 changes: 53 additions & 0 deletions llvm/test/CodeGen/ARM/llvm.frexp.ll
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Expand Up @@ -544,6 +544,59 @@ define <2 x i32> @test_frexp_v2f64_v2i32_only_use_exp(<2 x double> %a) {
ret <2 x i32> %result.1
}

define { fp128, i32 } @test_frexp_f128_i32(fp128 %a) nounwind {
; CHECK-LABEL: test_frexp_f128_i32:
; CHECK: @ %bb.0:
; CHECK-NEXT: push {r4, lr}
; CHECK-NEXT: sub sp, #8
; CHECK-NEXT: mov r12, r3
; CHECK-NEXT: ldr r3, [sp, #16]
; CHECK-NEXT: mov r4, r0
; CHECK-NEXT: add r0, sp, #4
; CHECK-NEXT: str r0, [sp]
; CHECK-NEXT: mov r0, r1
; CHECK-NEXT: mov r1, r2
; CHECK-NEXT: mov r2, r12
; CHECK-NEXT: bl frexpl
; CHECK-NEXT: ldr.w r12, [sp, #4]
; CHECK-NEXT: stm.w r4, {r0, r1, r2, r3, r12}
; CHECK-NEXT: add sp, #8
; CHECK-NEXT: pop {r4, pc}
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
ret { fp128, i32 } %result
}

define fp128 @test_frexp_f128_i32_only_use_fract(fp128 %a) nounwind {
; CHECK-LABEL: test_frexp_f128_i32_only_use_fract:
; CHECK: @ %bb.0:
; CHECK-NEXT: push {r7, lr}
; CHECK-NEXT: sub sp, #8
; CHECK-NEXT: add.w r12, sp, #4
; CHECK-NEXT: str.w r12, [sp]
; CHECK-NEXT: bl frexpl
; CHECK-NEXT: add sp, #8
; CHECK-NEXT: pop {r7, pc}
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
%result.0 = extractvalue { fp128, i32 } %result, 0
ret fp128 %result.0
}

define i32 @test_frexp_f128_i32_only_use_exp(fp128 %a) nounwind {
; CHECK-LABEL: test_frexp_f128_i32_only_use_exp:
; CHECK: @ %bb.0:
; CHECK-NEXT: push {r7, lr}
; CHECK-NEXT: sub sp, #8
; CHECK-NEXT: add.w r12, sp, #4
; CHECK-NEXT: str.w r12, [sp]
; CHECK-NEXT: bl frexpl
; CHECK-NEXT: ldr r0, [sp, #4]
; CHECK-NEXT: add sp, #8
; CHECK-NEXT: pop {r7, pc}
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
%result.0 = extractvalue { fp128, i32 } %result, 1
ret i32 %result.0
}

declare { float, i32 } @llvm.frexp.f32.i32(float) #0
declare { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float>) #0
declare { <4 x float>, <4 x i32> } @llvm.frexp.v4f32.v4i32(<4 x float>) #0
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14 changes: 14 additions & 0 deletions llvm/test/CodeGen/Mips/ldexp.ll
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Expand Up @@ -141,6 +141,20 @@ define x86_fp80 @ldexp_f80(x86_fp80 %arg0, i32 %arg1) nounwind {
ret x86_fp80 %ldexp
}

define fp128 @ldexp_f128(fp128 %arg0, i32 %arg1) nounwind {
; SOFT-LABEL: ldexp_f128:
; SOFT: # %bb.0:
; SOFT-NEXT: addiu $sp, $sp, -32
; SOFT-NEXT: sw $ra, 28($sp) # 4-byte Folded Spill
; SOFT-NEXT: lw $1, 48($sp)
; SOFT-NEXT: jal ldexpl
; SOFT-NEXT: sw $1, 16($sp)
; SOFT-NEXT: lw $ra, 28($sp) # 4-byte Folded Reload
; SOFT-NEXT: jr $ra
; SOFT-NEXT: addiu $sp, $sp, 32
%ldexp = call fp128 @llvm.ldexp.f128.i32(fp128 %arg0, i32 %arg1)
ret fp128 %ldexp
}

declare double @llvm.ldexp.f64.i32(double, i32) #0
declare float @llvm.ldexp.f32.i32(float, i32) #0
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51 changes: 51 additions & 0 deletions llvm/test/CodeGen/X86/ldexp.ll
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Expand Up @@ -557,6 +557,57 @@ define half @ldexp_f16(half %arg0, i32 %arg1) nounwind {
ret half %ldexp
}

define fp128 @ldexp_f128(fp128 %arg0, i32 %arg1) nounwind {
; X64-LABEL: ldexp_f128:
; X64: # %bb.0:
; X64-NEXT: jmp ldexpl@PLT # TAILCALL
;
; WIN64-LABEL: ldexp_f128:
; WIN64: # %bb.0:
; WIN64-NEXT: subq $56, %rsp
; WIN64-NEXT: movaps (%rcx), %xmm0
; WIN64-NEXT: movaps %xmm0, {{[0-9]+}}(%rsp)
; WIN64-NEXT: leaq {{[0-9]+}}(%rsp), %rcx
; WIN64-NEXT: callq ldexpl
; WIN64-NEXT: addq $56, %rsp
; WIN64-NEXT: retq
;
; WIN32-LABEL: ldexp_f128:
; WIN32: # %bb.0:
; WIN32-NEXT: pushl %ebp
; WIN32-NEXT: movl %esp, %ebp
; WIN32-NEXT: pushl %edi
; WIN32-NEXT: pushl %esi
; WIN32-NEXT: andl $-16, %esp
; WIN32-NEXT: subl $16, %esp
; WIN32-NEXT: movl 8(%ebp), %esi
; WIN32-NEXT: movl %esp, %eax
; WIN32-NEXT: pushl 28(%ebp)
; WIN32-NEXT: pushl 24(%ebp)
; WIN32-NEXT: pushl 20(%ebp)
; WIN32-NEXT: pushl 16(%ebp)
; WIN32-NEXT: pushl 12(%ebp)
; WIN32-NEXT: pushl %eax
; WIN32-NEXT: calll _ldexpl
; WIN32-NEXT: addl $24, %esp
; WIN32-NEXT: movl (%esp), %eax
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %edx
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %edi
; WIN32-NEXT: movl %edi, 12(%esi)
; WIN32-NEXT: movl %edx, 8(%esi)
; WIN32-NEXT: movl %ecx, 4(%esi)
; WIN32-NEXT: movl %eax, (%esi)
; WIN32-NEXT: movl %esi, %eax
; WIN32-NEXT: leal -8(%ebp), %esp
; WIN32-NEXT: popl %esi
; WIN32-NEXT: popl %edi
; WIN32-NEXT: popl %ebp
; WIN32-NEXT: retl
%ldexp = call fp128 @llvm.ldexp.f128.i32(fp128 %arg0, i32 %arg1)
ret fp128 %ldexp
}

declare double @llvm.ldexp.f64.i32(double, i32) #0
declare float @llvm.ldexp.f32.i32(float, i32) #0
declare <2 x float> @llvm.ldexp.v2f32.v2i32(<2 x float>, <2 x i32>) #0
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133 changes: 133 additions & 0 deletions llvm/test/CodeGen/X86/llvm.frexp.ll
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Expand Up @@ -600,6 +600,139 @@ define i32 @test_frexp_f64_i32_only_use_exp(double %a) nounwind {
; ret <2 x i32> %result.1
; }

define { fp128, i32 } @test_frexp_f128_i32(fp128 %a) nounwind {
; X64-LABEL: test_frexp_f128_i32:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; X64-NEXT: callq frexpl@PLT
; X64-NEXT: movl {{[0-9]+}}(%rsp), %eax
; X64-NEXT: popq %rcx
; X64-NEXT: retq
;
; WIN32-LABEL: test_frexp_f128_i32:
; WIN32: # %bb.0:
; WIN32-NEXT: pushl %ebp
; WIN32-NEXT: movl %esp, %ebp
; WIN32-NEXT: pushl %ebx
; WIN32-NEXT: pushl %edi
; WIN32-NEXT: pushl %esi
; WIN32-NEXT: andl $-16, %esp
; WIN32-NEXT: subl $48, %esp
; WIN32-NEXT: movl 8(%ebp), %esi
; WIN32-NEXT: leal {{[0-9]+}}(%esp), %eax
; WIN32-NEXT: leal {{[0-9]+}}(%esp), %ecx
; WIN32-NEXT: pushl %eax
; WIN32-NEXT: pushl 24(%ebp)
; WIN32-NEXT: pushl 20(%ebp)
; WIN32-NEXT: pushl 16(%ebp)
; WIN32-NEXT: pushl 12(%ebp)
; WIN32-NEXT: pushl %ecx
; WIN32-NEXT: calll _frexpl
; WIN32-NEXT: addl $24, %esp
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %eax
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %edx
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %edi
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %ebx
; WIN32-NEXT: movl %ebx, 12(%esi)
; WIN32-NEXT: movl %edi, 8(%esi)
; WIN32-NEXT: movl %edx, 4(%esi)
; WIN32-NEXT: movl %ecx, (%esi)
; WIN32-NEXT: movl %eax, 16(%esi)
; WIN32-NEXT: movl %esi, %eax
; WIN32-NEXT: leal -12(%ebp), %esp
; WIN32-NEXT: popl %esi
; WIN32-NEXT: popl %edi
; WIN32-NEXT: popl %ebx
; WIN32-NEXT: popl %ebp
; WIN32-NEXT: retl
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
ret { fp128, i32 } %result
}

define fp128 @test_frexp_f128_i32_only_use_fract(fp128 %a) nounwind {
; X64-LABEL: test_frexp_f128_i32_only_use_fract:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; X64-NEXT: callq frexpl@PLT
; X64-NEXT: popq %rax
; X64-NEXT: retq
;
; WIN32-LABEL: test_frexp_f128_i32_only_use_fract:
; WIN32: # %bb.0:
; WIN32-NEXT: pushl %ebp
; WIN32-NEXT: movl %esp, %ebp
; WIN32-NEXT: pushl %edi
; WIN32-NEXT: pushl %esi
; WIN32-NEXT: andl $-16, %esp
; WIN32-NEXT: subl $32, %esp
; WIN32-NEXT: movl 8(%ebp), %esi
; WIN32-NEXT: leal {{[0-9]+}}(%esp), %eax
; WIN32-NEXT: movl %esp, %ecx
; WIN32-NEXT: pushl %eax
; WIN32-NEXT: pushl 24(%ebp)
; WIN32-NEXT: pushl 20(%ebp)
; WIN32-NEXT: pushl 16(%ebp)
; WIN32-NEXT: pushl 12(%ebp)
; WIN32-NEXT: pushl %ecx
; WIN32-NEXT: calll _frexpl
; WIN32-NEXT: addl $24, %esp
; WIN32-NEXT: movl (%esp), %eax
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %ecx
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %edx
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %edi
; WIN32-NEXT: movl %edi, 12(%esi)
; WIN32-NEXT: movl %edx, 8(%esi)
; WIN32-NEXT: movl %ecx, 4(%esi)
; WIN32-NEXT: movl %eax, (%esi)
; WIN32-NEXT: movl %esi, %eax
; WIN32-NEXT: leal -8(%ebp), %esp
; WIN32-NEXT: popl %esi
; WIN32-NEXT: popl %edi
; WIN32-NEXT: popl %ebp
; WIN32-NEXT: retl
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
%result.0 = extractvalue { fp128, i32 } %result, 0
ret fp128 %result.0
}

define i32 @test_frexp_f128_i32_only_use_exp(fp128 %a) nounwind {
; X64-LABEL: test_frexp_f128_i32_only_use_exp:
; X64: # %bb.0:
; X64-NEXT: pushq %rax
; X64-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; X64-NEXT: callq frexpl@PLT
; X64-NEXT: movl {{[0-9]+}}(%rsp), %eax
; X64-NEXT: popq %rcx
; X64-NEXT: retq
;
; WIN32-LABEL: test_frexp_f128_i32_only_use_exp:
; WIN32: # %bb.0:
; WIN32-NEXT: pushl %ebp
; WIN32-NEXT: movl %esp, %ebp
; WIN32-NEXT: andl $-16, %esp
; WIN32-NEXT: subl $48, %esp
; WIN32-NEXT: leal {{[0-9]+}}(%esp), %eax
; WIN32-NEXT: leal {{[0-9]+}}(%esp), %ecx
; WIN32-NEXT: pushl %eax
; WIN32-NEXT: pushl 20(%ebp)
; WIN32-NEXT: pushl 16(%ebp)
; WIN32-NEXT: pushl 12(%ebp)
; WIN32-NEXT: pushl 8(%ebp)
; WIN32-NEXT: pushl %ecx
; WIN32-NEXT: calll _frexpl
; WIN32-NEXT: addl $24, %esp
; WIN32-NEXT: movl {{[0-9]+}}(%esp), %eax
; WIN32-NEXT: movl %ebp, %esp
; WIN32-NEXT: popl %ebp
; WIN32-NEXT: retl
%result = call { fp128, i32 } @llvm.frexp.f128.i32(fp128 %a)
%result.0 = extractvalue { fp128, i32 } %result, 1
ret i32 %result.0
}

declare { float, i32 } @llvm.frexp.f32.i32(float) #0
declare { <2 x float>, <2 x i32> } @llvm.frexp.v2f32.v2i32(<2 x float>) #0
declare { <4 x float>, <4 x i32> } @llvm.frexp.v4f32.v4i32(<4 x float>) #0
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