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llvm-project/llvm/test/CodeGen/ARM/fp16-v3.ll

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[LLVM] Remove unwanted --check-prefix=CHECK from unit tests. NFC. Summary: Removed unwanted --check-prefix=CHECK from numerous unit tests. Reviewers: t.p.northover, dblaikie, uweigand, MatzeB, tstellarAMD, mcrosier Subscribers: mcrosier, dsanders Differential Revision: http://reviews.llvm.org/D19279 llvm-svn: 266834
2016-04-20 07:51:52 +08:00
; RUN: llc -mattr=+fp16 < %s | FileCheck %s
Do not ASSERTZEXT for i16 result of bitcast from f16 operand Summary: During legalization if i16, do not ASSERTZEXT the result of FP_TO_FP16. Directly return an FP_TO_FP16 node with return type as the promote-to-type of i16. This patch also removes extraneous length check. This legalization should be valid even if integer and float types are of different lengths. This patch breaks a hard-float test for fp16 args. The test is changed to allow a vmov to zero-out the top bits, and also ensure that the return value is in an FP register. Reviewers: ab, jmolloy Subscribers: srhines, llvm-commits Differential Revision: http://reviews.llvm.org/D15438 llvm-svn: 257184
2016-01-09 01:46:05 +08:00
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armv7a--none-eabi"
; CHECK-LABEL: test_vec3:
[CodeGen] Round [SU]INT_TO_FP result when promoting from f16. If we don't, values that aren't precisely representable in f16 could be used as-is in a promoted f32 operation, which would produce incorrect results. AArch64 had the correct behavior; add a focused test. Fixes http://llvm.org/PR26871 llvm-svn: 268700
2016-05-06 08:58:00 +08:00
; CHECK-DAG: vcvtb.f32.f16 [[SREG1:s[0-9]+]],
; CHECK-DAG: vcvt.f32.s32 [[SREG2:s[0-9]+]],
; CHECK-DAG: vcvtb.f16.f32 [[SREG3:s[0-9]+]], [[SREG2]]
; CHECK-DAG: vcvtb.f32.f16 [[SREG4:s[0-9]+]], [[SREG3]]
; CHECK: vadd.f32 [[SREG5:s[0-9]+]], [[SREG4]], [[SREG1]]
; CHECK-NEXT: vcvtb.f16.f32 [[SREG6:s[0-9]+]], [[SREG5]]
; CHECK-NEXT: vmov [[RREG1:r[0-9]+]], [[SREG6]]
Do not ASSERTZEXT for i16 result of bitcast from f16 operand Summary: During legalization if i16, do not ASSERTZEXT the result of FP_TO_FP16. Directly return an FP_TO_FP16 node with return type as the promote-to-type of i16. This patch also removes extraneous length check. This legalization should be valid even if integer and float types are of different lengths. This patch breaks a hard-float test for fp16 args. The test is changed to allow a vmov to zero-out the top bits, and also ensure that the return value is in an FP register. Reviewers: ab, jmolloy Subscribers: srhines, llvm-commits Differential Revision: http://reviews.llvm.org/D15438 llvm-svn: 257184
2016-01-09 01:46:05 +08:00
; CHECK-NEXT: uxth [[RREG2:r[0-9]+]], [[RREG1]]
; CHECK-NEXT: pkhbt [[RREG3:r[0-9]+]], [[RREG1]], [[RREG1]], lsl #16
; CHECK-DAG: strh [[RREG1]], [r0, #4]
; CHECK-DAG: vmov [[DREG:d[0-9]+]], [[RREG3]], [[RREG2]]
; CHECK-DAG: vst1.32 {[[DREG]][0]}, [r0:32]
; CHECK-NEXT: bx lr
define void @test_vec3(<3 x half>* %arr, i32 %i) #0 {
%H = sitofp i32 %i to half
%S = fadd half %H, 0xH4A00
%1 = insertelement <3 x half> undef, half %S, i32 0
%2 = insertelement <3 x half> %1, half %S, i32 1
%3 = insertelement <3 x half> %2, half %S, i32 2
store <3 x half> %3, <3 x half>* %arr, align 8
ret void
}
Remove unsafe AssertZext after promoting result of FP_TO_FP16 Summary: Some target lowerings of FP_TO_FP16, for instance ARM's vcvtb.f16.f32 instruction, do not guarantee that the top 16 bits are zeroed out. Remove the unsafe AssertZext and add tests to exercise this. Reviewers: jmolloy, sbaranga, kristof.beyls, aadg Subscribers: llvm-commits, srhines, aemerson Differential Revision: http://reviews.llvm.org/D18426 llvm-svn: 264285
2016-03-24 22:06:03 +08:00
; CHECK-LABEL: test_bitcast:
; CHECK: vcvtb.f16.f32
; CHECK: vcvtb.f16.f32
; CHECK: vcvtb.f16.f32
; CHECK: pkhbt
; CHECK: uxth
define void @test_bitcast(<3 x half> %inp, <3 x i16>* %arr) #0 {
%bc = bitcast <3 x half> %inp to <3 x i16>
store <3 x i16> %bc, <3 x i16>* %arr, align 8
ret void
}
Do not ASSERTZEXT for i16 result of bitcast from f16 operand Summary: During legalization if i16, do not ASSERTZEXT the result of FP_TO_FP16. Directly return an FP_TO_FP16 node with return type as the promote-to-type of i16. This patch also removes extraneous length check. This legalization should be valid even if integer and float types are of different lengths. This patch breaks a hard-float test for fp16 args. The test is changed to allow a vmov to zero-out the top bits, and also ensure that the return value is in an FP register. Reviewers: ab, jmolloy Subscribers: srhines, llvm-commits Differential Revision: http://reviews.llvm.org/D15438 llvm-svn: 257184
2016-01-09 01:46:05 +08:00
attributes #0 = { nounwind }