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llvm-mirror/test/CodeGen/X86/fp128-select.ll
Craig Topper c36bf787c1 [LegalizeTypes] Teach SoftenFloatOp_SELECT_CC to handle operand 2 or 3 being softened.
This can only happen on X86 when fp128 is a legal type, but we
go through softening to generate libcalls. This causes fp128 to
be softened to fp128 instead of an integer type. This can be
removed if D67128 lands.

llvm-svn: 371493
2019-09-10 07:56:02 +00:00

138 lines
4.7 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -O2 -mtriple=x86_64-linux-android -mattr=+sse \
; RUN: -enable-legalize-types-checking | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -O2 -mtriple=x86_64-linux-gnu -mattr=+sse \
; RUN: -enable-legalize-types-checking | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -O2 -mtriple=x86_64-linux-android -mattr=-sse \
; RUN: -enable-legalize-types-checking | FileCheck %s --check-prefix=NOSSE
; RUN: llc < %s -O2 -mtriple=x86_64-linux-gnu -mattr=-sse \
; RUN: -enable-legalize-types-checking | FileCheck %s --check-prefix=NOSSE
define void @test_select(fp128* %p, fp128* %q, i1 zeroext %c) {
; SSE-LABEL: test_select:
; SSE: # %bb.0:
; SSE-NEXT: testl %edx, %edx
; SSE-NEXT: jne .LBB0_1
; SSE-NEXT: # %bb.2:
; SSE-NEXT: movaps {{.*}}(%rip), %xmm0
; SSE-NEXT: movaps %xmm0, (%rsi)
; SSE-NEXT: retq
; SSE-NEXT: .LBB0_1:
; SSE-NEXT: movups (%rdi), %xmm0
; SSE-NEXT: movaps %xmm0, (%rsi)
; SSE-NEXT: retq
;
; NOSSE-LABEL: test_select:
; NOSSE: # %bb.0:
; NOSSE-NEXT: xorl %eax, %eax
; NOSSE-NEXT: testl %edx, %edx
; NOSSE-NEXT: cmovneq (%rdi), %rax
; NOSSE-NEXT: movabsq $9223231299366420480, %rcx # imm = 0x7FFF800000000000
; NOSSE-NEXT: cmovneq 8(%rdi), %rcx
; NOSSE-NEXT: movq %rcx, 8(%rsi)
; NOSSE-NEXT: movq %rax, (%rsi)
; NOSSE-NEXT: retq
%a = load fp128, fp128* %p, align 2
%r = select i1 %c, fp128 %a, fp128 0xL00000000000000007FFF800000000000
store fp128 %r, fp128* %q
ret void
}
; The uitofp will become a select_cc. This used to crash during type
; legalization because we didn't expect the operands to need to be softened.
define fp128 @test_select_cc(fp128, fp128) {
; SSE-LABEL: test_select_cc:
; SSE: # %bb.0: # %BB0
; SSE-NEXT: pushq %rbx
; SSE-NEXT: .cfi_def_cfa_offset 16
; SSE-NEXT: subq $32, %rsp
; SSE-NEXT: .cfi_def_cfa_offset 48
; SSE-NEXT: .cfi_offset %rbx, -16
; SSE-NEXT: movaps %xmm1, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
; SSE-NEXT: movaps %xmm0, (%rsp) # 16-byte Spill
; SSE-NEXT: callq __netf2
; SSE-NEXT: movl %eax, %ebx
; SSE-NEXT: movaps (%rsp), %xmm0 # 16-byte Reload
; SSE-NEXT: movaps {{[-0-9]+}}(%r{{[sb]}}p), %xmm1 # 16-byte Reload
; SSE-NEXT: callq __eqtf2
; SSE-NEXT: testl %eax, %eax
; SSE-NEXT: je .LBB1_1
; SSE-NEXT: # %bb.2: # %BB0
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: jmp .LBB1_3
; SSE-NEXT: .LBB1_1:
; SSE-NEXT: movaps {{.*}}(%rip), %xmm1
; SSE-NEXT: .LBB1_3: # %BB0
; SSE-NEXT: testl %ebx, %ebx
; SSE-NEXT: movaps (%rsp), %xmm0 # 16-byte Reload
; SSE-NEXT: jne .LBB1_5
; SSE-NEXT: # %bb.4: # %BB1
; SSE-NEXT: movaps %xmm1, %xmm0
; SSE-NEXT: .LBB1_5: # %BB2
; SSE-NEXT: addq $32, %rsp
; SSE-NEXT: .cfi_def_cfa_offset 16
; SSE-NEXT: popq %rbx
; SSE-NEXT: .cfi_def_cfa_offset 8
; SSE-NEXT: retq
;
; NOSSE-LABEL: test_select_cc:
; NOSSE: # %bb.0: # %BB0
; NOSSE-NEXT: pushq %rbp
; NOSSE-NEXT: .cfi_def_cfa_offset 16
; NOSSE-NEXT: pushq %r15
; NOSSE-NEXT: .cfi_def_cfa_offset 24
; NOSSE-NEXT: pushq %r14
; NOSSE-NEXT: .cfi_def_cfa_offset 32
; NOSSE-NEXT: pushq %r12
; NOSSE-NEXT: .cfi_def_cfa_offset 40
; NOSSE-NEXT: pushq %rbx
; NOSSE-NEXT: .cfi_def_cfa_offset 48
; NOSSE-NEXT: .cfi_offset %rbx, -48
; NOSSE-NEXT: .cfi_offset %r12, -40
; NOSSE-NEXT: .cfi_offset %r14, -32
; NOSSE-NEXT: .cfi_offset %r15, -24
; NOSSE-NEXT: .cfi_offset %rbp, -16
; NOSSE-NEXT: movq %rcx, %r12
; NOSSE-NEXT: movq %rdx, %rbx
; NOSSE-NEXT: movq %rsi, %r14
; NOSSE-NEXT: movq %rdi, %r15
; NOSSE-NEXT: callq __netf2
; NOSSE-NEXT: movl %eax, %ebp
; NOSSE-NEXT: movq %r15, %rdi
; NOSSE-NEXT: movq %r14, %rsi
; NOSSE-NEXT: movq %rbx, %rdx
; NOSSE-NEXT: movq %r12, %rcx
; NOSSE-NEXT: callq __eqtf2
; NOSSE-NEXT: movl %eax, %ecx
; NOSSE-NEXT: xorl %eax, %eax
; NOSSE-NEXT: testl %ecx, %ecx
; NOSSE-NEXT: movabsq $4611404543450677248, %rdx # imm = 0x3FFF000000000000
; NOSSE-NEXT: cmovneq %rax, %rdx
; NOSSE-NEXT: testl %ebp, %ebp
; NOSSE-NEXT: je .LBB1_2
; NOSSE-NEXT: # %bb.1:
; NOSSE-NEXT: movq %r15, %rax
; NOSSE-NEXT: movq %r14, %rdx
; NOSSE-NEXT: .LBB1_2: # %BB2
; NOSSE-NEXT: popq %rbx
; NOSSE-NEXT: .cfi_def_cfa_offset 40
; NOSSE-NEXT: popq %r12
; NOSSE-NEXT: .cfi_def_cfa_offset 32
; NOSSE-NEXT: popq %r14
; NOSSE-NEXT: .cfi_def_cfa_offset 24
; NOSSE-NEXT: popq %r15
; NOSSE-NEXT: .cfi_def_cfa_offset 16
; NOSSE-NEXT: popq %rbp
; NOSSE-NEXT: .cfi_def_cfa_offset 8
; NOSSE-NEXT: retq
BB0:
%a = fcmp oeq fp128 %0, %1
%b = uitofp i1 %a to fp128
br i1 %a, label %BB1, label %BB2
BB1:
br label %BB2
BB2:
%c = phi fp128 [ %0, %BB0 ], [ %b, %BB1 ]
ret fp128 %c
}