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[X86][Test] Update tests for lround and llrint (NFC) #157807

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Sep 10, 2025
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[X86][Test] Update tests for lround and llrint (NFC) #157807

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256 changes: 197 additions & 59 deletions llvm/test/CodeGen/X86/llrint-conv.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -7,47 +7,15 @@
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=avx | FileCheck %s --check-prefixes=X64,X64-AVX
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=avx512f | FileCheck %s --check-prefixes=X64,X64-AVX

define i64 @testmsxh(half %x) nounwind {
; X86-NOSSE-LABEL: testmsxh:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: pushl %eax
; X86-NOSSE-NEXT: movzwl {{[0-9]+}}(%esp), %eax
; X86-NOSSE-NEXT: movl %eax, (%esp)
; X86-NOSSE-NEXT: calll __extendhfsf2
; X86-NOSSE-NEXT: fstps (%esp)
; X86-NOSSE-NEXT: calll llrintf
; X86-NOSSE-NEXT: popl %ecx
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: testmsxh:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: pushl %eax
; X86-SSE2-NEXT: pinsrw $0, {{[0-9]+}}(%esp), %xmm0
; X86-SSE2-NEXT: pextrw $0, %xmm0, %eax
; X86-SSE2-NEXT: movw %ax, (%esp)
; X86-SSE2-NEXT: calll __extendhfsf2
; X86-SSE2-NEXT: fstps (%esp)
; X86-SSE2-NEXT: calll llrintf
; X86-SSE2-NEXT: popl %ecx
; X86-SSE2-NEXT: retl
;
; X64-SSE-LABEL: testmsxh:
; X64-SSE: # %bb.0: # %entry
; X64-SSE-NEXT: pushq %rax
; X64-SSE-NEXT: callq __extendhfsf2@PLT
; X64-SSE-NEXT: callq rintf@PLT
; X64-SSE-NEXT: callq __truncsfhf2@PLT
; X64-SSE-NEXT: callq __extendhfsf2@PLT
; X64-SSE-NEXT: cvttss2si %xmm0, %rax
; X64-SSE-NEXT: popq %rcx
; X64-SSE-NEXT: retq
entry:
%0 = tail call i64 @llvm.llrint.i64.f16(half %x)
ret i64 %0
}
; FIXME: crash
; define i64 @test_llrint_i64_f16(half %x) nounwind {
; entry:
; %0 = tail call i64 @llvm.llrint.i64.f16(half %x)
; ret i64 %0
; }

define i64 @testmsxs(float %x) nounwind {
; X86-NOSSE-LABEL: testmsxs:
define i64 @test_llrint_i64_f32(float %x) nounwind {
; X86-NOSSE-LABEL: test_llrint_i64_f32:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: pushl %ebp
; X86-NOSSE-NEXT: movl %esp, %ebp
Expand All @@ -61,7 +29,7 @@ define i64 @testmsxs(float %x) nounwind {
; X86-NOSSE-NEXT: popl %ebp
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: testmsxs:
; X86-SSE2-LABEL: test_llrint_i64_f32:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: pushl %ebp
; X86-SSE2-NEXT: movl %esp, %ebp
Expand All @@ -77,7 +45,7 @@ define i64 @testmsxs(float %x) nounwind {
; X86-SSE2-NEXT: popl %ebp
; X86-SSE2-NEXT: retl
;
; X86-AVX-LABEL: testmsxs:
; X86-AVX-LABEL: test_llrint_i64_f32:
; X86-AVX: # %bb.0: # %entry
; X86-AVX-NEXT: pushl %ebp
; X86-AVX-NEXT: movl %esp, %ebp
Expand All @@ -93,12 +61,12 @@ define i64 @testmsxs(float %x) nounwind {
; X86-AVX-NEXT: popl %ebp
; X86-AVX-NEXT: retl
;
; X64-SSE-LABEL: testmsxs:
; X64-SSE-LABEL: test_llrint_i64_f32:
; X64-SSE: # %bb.0: # %entry
; X64-SSE-NEXT: cvtss2si %xmm0, %rax
; X64-SSE-NEXT: retq
;
; X64-AVX-LABEL: testmsxs:
; X64-AVX-LABEL: test_llrint_i64_f32:
; X64-AVX: # %bb.0: # %entry
; X64-AVX-NEXT: vcvtss2si %xmm0, %rax
; X64-AVX-NEXT: retq
Expand All @@ -107,8 +75,8 @@ entry:
ret i64 %0
}

define i64 @testmsxd(double %x) nounwind {
; X86-NOSSE-LABEL: testmsxd:
define i64 @test_llrint_i64_f64(double %x) nounwind {
; X86-NOSSE-LABEL: test_llrint_i64_f64:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: pushl %ebp
; X86-NOSSE-NEXT: movl %esp, %ebp
Expand All @@ -122,7 +90,7 @@ define i64 @testmsxd(double %x) nounwind {
; X86-NOSSE-NEXT: popl %ebp
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: testmsxd:
; X86-SSE2-LABEL: test_llrint_i64_f64:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: pushl %ebp
; X86-SSE2-NEXT: movl %esp, %ebp
Expand All @@ -138,7 +106,7 @@ define i64 @testmsxd(double %x) nounwind {
; X86-SSE2-NEXT: popl %ebp
; X86-SSE2-NEXT: retl
;
; X86-AVX-LABEL: testmsxd:
; X86-AVX-LABEL: test_llrint_i64_f64:
; X86-AVX: # %bb.0: # %entry
; X86-AVX-NEXT: pushl %ebp
; X86-AVX-NEXT: movl %esp, %ebp
Expand All @@ -154,12 +122,12 @@ define i64 @testmsxd(double %x) nounwind {
; X86-AVX-NEXT: popl %ebp
; X86-AVX-NEXT: retl
;
; X64-SSE-LABEL: testmsxd:
; X64-SSE-LABEL: test_llrint_i64_f64:
; X64-SSE: # %bb.0: # %entry
; X64-SSE-NEXT: cvtsd2si %xmm0, %rax
; X64-SSE-NEXT: retq
;
; X64-AVX-LABEL: testmsxd:
; X64-AVX-LABEL: test_llrint_i64_f64:
; X64-AVX: # %bb.0: # %entry
; X64-AVX-NEXT: vcvtsd2si %xmm0, %rax
; X64-AVX-NEXT: retq
Expand All @@ -168,8 +136,8 @@ entry:
ret i64 %0
}

define i64 @testmsll(x86_fp80 %x) nounwind {
; X86-LABEL: testmsll:
define i64 @test_llrint_i64_f80(x86_fp80 %x) nounwind {
; X86-LABEL: test_llrint_i64_f80:
; X86: # %bb.0: # %entry
; X86-NEXT: pushl %ebp
; X86-NEXT: movl %esp, %ebp
Expand All @@ -183,7 +151,7 @@ define i64 @testmsll(x86_fp80 %x) nounwind {
; X86-NEXT: popl %ebp
; X86-NEXT: retl
;
; X64-LABEL: testmsll:
; X64-LABEL: test_llrint_i64_f80:
; X64: # %bb.0: # %entry
; X64-NEXT: fldt {{[0-9]+}}(%rsp)
; X64-NEXT: fistpll -{{[0-9]+}}(%rsp)
Expand All @@ -195,8 +163,8 @@ entry:
}

; FIXME(#44744): incorrect libcall
define i64 @testmslq(fp128 %x) nounwind {
; X86-NOSSE-LABEL: testmslq:
define i64 @test_llrint_i64_f128(fp128 %x) nounwind {
; X86-NOSSE-LABEL: test_llrint_i64_f128:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: pushl %ebp
; X86-NOSSE-NEXT: movl %esp, %ebp
Expand All @@ -212,7 +180,7 @@ define i64 @testmslq(fp128 %x) nounwind {
; X86-NOSSE-NEXT: popl %ebp
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: testmslq:
; X86-SSE2-LABEL: test_llrint_i64_f128:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: pushl %ebp
; X86-SSE2-NEXT: movl %esp, %ebp
Expand All @@ -228,7 +196,7 @@ define i64 @testmslq(fp128 %x) nounwind {
; X86-SSE2-NEXT: popl %ebp
; X86-SSE2-NEXT: retl
;
; X86-AVX-LABEL: testmslq:
; X86-AVX-LABEL: test_llrint_i64_f128:
; X86-AVX: # %bb.0: # %entry
; X86-AVX-NEXT: pushl %ebp
; X86-AVX-NEXT: movl %esp, %ebp
Expand All @@ -241,11 +209,181 @@ define i64 @testmslq(fp128 %x) nounwind {
; X86-AVX-NEXT: popl %ebp
; X86-AVX-NEXT: retl
;
; X64-LABEL: testmslq:
; X64-LABEL: test_llrint_i64_f128:
; X64: # %bb.0: # %entry
; X64-NEXT: jmp llrintl@PLT # TAILCALL
entry:
%0 = tail call i64 @llvm.llrint.i64.fp128(fp128 %x)
%0 = tail call i64 @llvm.llrint.i64.f128(fp128 %x)
ret i64 %0
}

; FIXME: crash
; define i64 @test_llrint_i64_f16_strict(half %x) nounwind strictfp {
; entry:
; %0 = tail call i64 @llvm.experimental.constrained.llrint.i64.f16(half %x, metadata!"round.dynamic", metadata!"fpexcept.strict")
; ret i64 %0
; }

define i64 @test_llrint_i64_f32_strict(float %x) nounwind strictfp {
; X86-NOSSE-LABEL: test_llrint_i64_f32_strict:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: pushl %eax
; X86-NOSSE-NEXT: flds {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT: fstps (%esp)
; X86-NOSSE-NEXT: wait
; X86-NOSSE-NEXT: calll llrintf
; X86-NOSSE-NEXT: popl %ecx
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: test_llrint_i64_f32_strict:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: pushl %eax
; X86-SSE2-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; X86-SSE2-NEXT: movss %xmm0, (%esp)
; X86-SSE2-NEXT: calll llrintf
; X86-SSE2-NEXT: popl %ecx
; X86-SSE2-NEXT: retl
;
; X86-AVX-LABEL: test_llrint_i64_f32_strict:
; X86-AVX: # %bb.0: # %entry
; X86-AVX-NEXT: pushl %eax
; X86-AVX-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; X86-AVX-NEXT: vmovss %xmm0, (%esp)
; X86-AVX-NEXT: calll llrintf
; X86-AVX-NEXT: popl %ecx
; X86-AVX-NEXT: retl
;
; X64-LABEL: test_llrint_i64_f32_strict:
; X64: # %bb.0: # %entry
; X64-NEXT: pushq %rax
; X64-NEXT: callq llrintf@PLT
; X64-NEXT: popq %rcx
; X64-NEXT: retq
entry:
%0 = tail call i64 @llvm.experimental.constrained.llrint.i64.f32(float %x, metadata!"round.dynamic", metadata!"fpexcept.strict")
ret i64 %0
}

define i64 @test_llrint_i64_f64_strict(double %x) nounwind strictfp {
; X86-NOSSE-LABEL: test_llrint_i64_f64_strict:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: subl $8, %esp
; X86-NOSSE-NEXT: fldl {{[0-9]+}}(%esp)
; X86-NOSSE-NEXT: fstpl (%esp)
; X86-NOSSE-NEXT: wait
; X86-NOSSE-NEXT: calll llrint
; X86-NOSSE-NEXT: addl $8, %esp
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: test_llrint_i64_f64_strict:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: subl $8, %esp
; X86-SSE2-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; X86-SSE2-NEXT: movsd %xmm0, (%esp)
; X86-SSE2-NEXT: calll llrint
; X86-SSE2-NEXT: addl $8, %esp
; X86-SSE2-NEXT: retl
;
; X86-AVX-LABEL: test_llrint_i64_f64_strict:
; X86-AVX: # %bb.0: # %entry
; X86-AVX-NEXT: subl $8, %esp
; X86-AVX-NEXT: vmovsd {{.*#+}} xmm0 = mem[0],zero
; X86-AVX-NEXT: vmovsd %xmm0, (%esp)
; X86-AVX-NEXT: calll llrint
; X86-AVX-NEXT: addl $8, %esp
; X86-AVX-NEXT: retl
;
; X64-LABEL: test_llrint_i64_f64_strict:
; X64: # %bb.0: # %entry
; X64-NEXT: pushq %rax
; X64-NEXT: callq llrint@PLT
; X64-NEXT: popq %rcx
; X64-NEXT: retq
entry:
%0 = tail call i64 @llvm.experimental.constrained.llrint.i64.f64(double %x, metadata!"round.dynamic", metadata!"fpexcept.strict")
ret i64 %0
}

define i64 @test_llrint_i64_f80_strict(x86_fp80 %x) nounwind strictfp {
; X86-LABEL: test_llrint_i64_f80_strict:
; X86: # %bb.0: # %entry
; X86-NEXT: subl $12, %esp
; X86-NEXT: fldt {{[0-9]+}}(%esp)
; X86-NEXT: fstpt (%esp)
; X86-NEXT: wait
; X86-NEXT: calll llrintl
; X86-NEXT: addl $12, %esp
; X86-NEXT: retl
;
; X64-LABEL: test_llrint_i64_f80_strict:
; X64: # %bb.0: # %entry
; X64-NEXT: subq $24, %rsp
; X64-NEXT: fldt {{[0-9]+}}(%rsp)
; X64-NEXT: fstpt (%rsp)
; X64-NEXT: wait
; X64-NEXT: callq llrintl@PLT
; X64-NEXT: addq $24, %rsp
; X64-NEXT: retq
entry:
%0 = tail call i64 @llvm.experimental.constrained.llrint.i64.f80(x86_fp80 %x, metadata!"round.dynamic", metadata!"fpexcept.strict")
ret i64 %0
}

; FIXME(#44744): incorrect libcall
define i64 @test_llrint_i64_f128_strict(fp128 %x) nounwind strictfp {
; X86-NOSSE-LABEL: test_llrint_i64_f128_strict:
; X86-NOSSE: # %bb.0: # %entry
; X86-NOSSE-NEXT: pushl %ebp
; X86-NOSSE-NEXT: movl %esp, %ebp
; X86-NOSSE-NEXT: andl $-16, %esp
; X86-NOSSE-NEXT: subl $16, %esp
; X86-NOSSE-NEXT: pushl 20(%ebp)
; X86-NOSSE-NEXT: pushl 16(%ebp)
; X86-NOSSE-NEXT: pushl 12(%ebp)
; X86-NOSSE-NEXT: pushl 8(%ebp)
; X86-NOSSE-NEXT: calll llrintl
; X86-NOSSE-NEXT: addl $16, %esp
; X86-NOSSE-NEXT: movl %ebp, %esp
; X86-NOSSE-NEXT: popl %ebp
; X86-NOSSE-NEXT: retl
;
; X86-SSE2-LABEL: test_llrint_i64_f128_strict:
; X86-SSE2: # %bb.0: # %entry
; X86-SSE2-NEXT: pushl %ebp
; X86-SSE2-NEXT: movl %esp, %ebp
; X86-SSE2-NEXT: andl $-16, %esp
; X86-SSE2-NEXT: subl $16, %esp
; X86-SSE2-NEXT: pushl 20(%ebp)
; X86-SSE2-NEXT: pushl 16(%ebp)
; X86-SSE2-NEXT: pushl 12(%ebp)
; X86-SSE2-NEXT: pushl 8(%ebp)
; X86-SSE2-NEXT: calll llrintl
; X86-SSE2-NEXT: addl $16, %esp
; X86-SSE2-NEXT: movl %ebp, %esp
; X86-SSE2-NEXT: popl %ebp
; X86-SSE2-NEXT: retl
;
; X86-AVX-LABEL: test_llrint_i64_f128_strict:
; X86-AVX: # %bb.0: # %entry
; X86-AVX-NEXT: pushl %ebp
; X86-AVX-NEXT: movl %esp, %ebp
; X86-AVX-NEXT: andl $-16, %esp
; X86-AVX-NEXT: subl $32, %esp
; X86-AVX-NEXT: vmovups 8(%ebp), %xmm0
; X86-AVX-NEXT: vmovups %xmm0, (%esp)
; X86-AVX-NEXT: calll llrintl
; X86-AVX-NEXT: movl %ebp, %esp
; X86-AVX-NEXT: popl %ebp
; X86-AVX-NEXT: retl
;
; X64-LABEL: test_llrint_i64_f128_strict:
; X64: # %bb.0: # %entry
; X64-NEXT: pushq %rax
; X64-NEXT: callq llrintl@PLT
; X64-NEXT: popq %rcx
; X64-NEXT: retq
entry:
%0 = tail call i64 @llvm.experimental.constrained.llrint.i64.f128(fp128 %x, metadata!"round.dynamic", metadata!"fpexcept.strict")
ret i64 %0
}

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