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; 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)
; INFINITY requires loading the constant for _Float16
define i32 @replace_isinf_call_f16(half %x) {
; CHECK-LABEL: replace_isinf_call_f16:
; CHECK: adrp [[ADDR:x[0-9]+]], [[CSTLABEL:.LCP.*]]
; CHECK: ldr [[INFINITY:h[0-9]+]], {{[[]}}[[ADDR]], :lo12:[[CSTLABEL]]{{[]]}}
; CHECK-NEXT: fabs [[ABS:h[0-9]+]], h0
; CHECK-NEXT: fcmp [[ABS]], [[INFINITY]]
; CHECK-NEXT: cset w0, eq
%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: mov [[INFSCALARREG:w[0-9]+]], #2139095040
; CHECK-NEXT: fabs [[ABS:s[0-9]+]], s0
; CHECK-NEXT: fmov [[INFREG:s[0-9]+]], [[INFSCALARREG]]
; CHECK-NEXT: fcmp [[ABS]], [[INFREG]]
; CHECK-NEXT: cset w0, eq
%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: mov [[INFSCALARREG:x[0-9]+]], #9218868437227405312
; CHECK-NEXT: fabs [[ABS:d[0-9]+]], d0
; CHECK-NEXT: fmov [[INFREG:d[0-9]+]], [[INFSCALARREG]]
; CHECK-NEXT: fcmp [[ABS]], [[INFREG]]
; CHECK-NEXT: cset w0, eq
%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: adrp [[ADDR:x[0-9]+]], [[CSTLABEL:.LCP.*]]
; CHECK: ldr q1, {{[[]}}[[ADDR]], :lo12:[[CSTLABEL]]{{[]]}}
; CHECK: bl __eqtf2
; CHECK: cmp w0, #0
; CHECK: cset w0, eq
%abs = tail call fp128 @llvm.fabs.f128(fp128 %x)
%cmpinf = fcmp oeq fp128 %abs, 0xL00000000000000007FFF000000000000
%ret = zext i1 %cmpinf to i32
ret i32 %ret
}
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