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