; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=+neon,+fullfp16 < %s -o -| FileCheck %s declare half @llvm.fabs.f16(half) declare float @llvm.fabs.f32(float) declare double @llvm.fabs.f64(double) declare fp128 @llvm.fabs.f128(fp128) ; Check if INFINITY for _Float16 is materialized define i32 @replace_isinf_call_f16(half %x) { ; CHECK-LABEL: replace_isinf_call_f16: ; CHECK: // %bb.0: ; CHECK-NEXT: mov w8, #31744 ; CHECK-NEXT: fabs h0, h0 ; CHECK-NEXT: fmov h1, w8 ; CHECK-NEXT: fcmp h0, h1 ; CHECK-NEXT: cset w0, eq ; CHECK-NEXT: ret %abs = tail call half @llvm.fabs.f16(half %x) %cmpinf = fcmp oeq half %abs, 0xH7C00 %ret = zext i1 %cmpinf to i32 ret i32 %ret } ; Check if INFINITY for float is materialized define i32 @replace_isinf_call_f32(float %x) { ; CHECK-LABEL: replace_isinf_call_f32: ; CHECK: // %bb.0: ; CHECK-NEXT: mov w8, #2139095040 ; CHECK-NEXT: fabs s0, s0 ; CHECK-NEXT: fmov s1, w8 ; CHECK-NEXT: fcmp s0, s1 ; CHECK-NEXT: cset w0, eq ; CHECK-NEXT: ret %abs = tail call float @llvm.fabs.f32(float %x) %cmpinf = fcmp oeq float %abs, 0x7FF0000000000000 %ret = zext i1 %cmpinf to i32 ret i32 %ret } ; Check if INFINITY for double is materialized define i32 @replace_isinf_call_f64(double %x) { ; CHECK-LABEL: replace_isinf_call_f64: ; CHECK: // %bb.0: ; CHECK-NEXT: mov x8, #9218868437227405312 ; CHECK-NEXT: fabs d0, d0 ; CHECK-NEXT: fmov d1, x8 ; CHECK-NEXT: fcmp d0, d1 ; CHECK-NEXT: cset w0, eq ; CHECK-NEXT: ret %abs = tail call double @llvm.fabs.f64(double %x) %cmpinf = fcmp oeq double %abs, 0x7FF0000000000000 %ret = zext i1 %cmpinf to i32 ret i32 %ret } ; For long double it still requires loading the constant. define i32 @replace_isinf_call_f128(fp128 %x) { ; CHECK-LABEL: replace_isinf_call_f128: ; CHECK: // %bb.0: ; CHECK-NEXT: sub sp, sp, #32 ; CHECK-NEXT: .cfi_def_cfa_offset 32 ; CHECK-NEXT: str x30, [sp, #16] // 8-byte Folded Spill ; CHECK-NEXT: .cfi_offset w30, -16 ; CHECK-NEXT: str q0, [sp] ; CHECK-NEXT: ldrb w8, [sp, #15] ; CHECK-NEXT: and w8, w8, #0x7f ; CHECK-NEXT: strb w8, [sp, #15] ; CHECK-NEXT: adrp x8, .LCPI3_0 ; CHECK-NEXT: ldr q0, [sp] ; CHECK-NEXT: ldr q1, [x8, :lo12:.LCPI3_0] ; CHECK-NEXT: bl __eqtf2 ; CHECK-NEXT: ldr x30, [sp, #16] // 8-byte Folded Reload ; CHECK-NEXT: cmp w0, #0 ; CHECK-NEXT: cset w0, eq ; CHECK-NEXT: add sp, sp, #32 ; CHECK-NEXT: ret %abs = tail call fp128 @llvm.fabs.f128(fp128 %x) %cmpinf = fcmp oeq fp128 %abs, 0xL00000000000000007FFF000000000000 %ret = zext i1 %cmpinf to i32 ret i32 %ret }