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llvm-mirror/test/CodeGen/Generic/fpoperations.ll
Serge Pavlov e9538ca02f [FPEnv] Intrinsic llvm.roundeven
This intrinsic implements IEEE-754 operation roundToIntegralTiesToEven,
and performs rounding to the nearest integer value, rounding halfway
cases to even. The intrinsic represents the missed case of IEEE-754
rounding operations and now llvm provides full support of the rounding
operations defined by the standard.

Differential Revision: https://reviews.llvm.org/D75670
2020-05-26 19:24:58 +07:00

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616 B
LLVM

; RUN: llc < %s | FileCheck %s
; This test checks default lowering of the intrinsics operating floating point
; values. MSP430 is used as a target in this test because it does not have
; native FP support, so it won't get custom lowering for these intrinsics.
;
; REQUIRES: msp430-registered-target
target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
target triple = "msp430---elf"
define float @roundeven_01(float %x) {
entry:
%res = call float @llvm.roundeven.f32(float %x)
ret float %res
}
; CHECK-LABEL: roundeven_01:
; CHECK: call #roundeven
declare float @llvm.roundeven.f32(float %x)