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llvm-mirror/test/CodeGen/Mips/msa/2rf_float_int.ll
Daniel Sanders 4d431047f3 [mips][msa] Build all the tests in little and big endian modes and correct an incorrect test.
Summary:
This patch (correctly) breaks some MSA tests by exposing the cases when
SelectionDAG::getConstant() produces illegal types. These have been temporarily
marked XFAIL and the XFAIL flag will be removed when
SelectionDAG::getConstant() is fixed.

There are three categories of failure:
* Immediate instructions are not selected in one endian mode.
* Immediates used in ldi.[bhwd] must be different according to endianness.
  (this only affects cases where the 'wrong' ldi is used to load the correct
   bitpattern. E.g. (bitcast:v2i64 (build_vector:v4i32 ...)))
* Non-immediate instructions that rely on immediates affected by the
  previous two categories as part of their match pattern.
  For example, the bset match pattern is the vector equivalent of
  'ws | (1 << wt)'.

One test needed correcting to expect different output depending on whether big
or little endian was in use. This test was
test/CodeGen/Mips/msa/basic_operations.ll and experiences the second category
of failure shown above. The little endian version of this test is named
basic_operations_little.ll and will be merged back into basic_operations.ll in
a follow up commit now that FileCheck supports multiple check prefixes.

Reviewers: bkramer, jacksprat, dsanders

Reviewed By: dsanders

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1972

llvm-svn: 194806
2013-11-15 11:04:16 +00:00

91 lines
3.5 KiB
LLVM

; Test the MSA integer to floating point conversion intrinsics that are encoded
; with the 2RF instruction format.
; RUN: llc -march=mips -mattr=+msa,+fp64 < %s | FileCheck %s
; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s | FileCheck %s
@llvm_mips_ffint_s_w_ARG1 = global <4 x i32> <i32 0, i32 1, i32 2, i32 3>, align 16
@llvm_mips_ffint_s_w_RES = global <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>, align 16
define void @llvm_mips_ffint_s_w_test() nounwind {
entry:
%0 = load <4 x i32>* @llvm_mips_ffint_s_w_ARG1
%1 = tail call <4 x float> @llvm.mips.ffint.s.w(<4 x i32> %0)
store <4 x float> %1, <4 x float>* @llvm_mips_ffint_s_w_RES
ret void
}
declare <4 x float> @llvm.mips.ffint.s.w(<4 x i32>) nounwind
; CHECK: llvm_mips_ffint_s_w_test:
; CHECK-DAG: lw [[R1:\$[0-9]+]], %got(llvm_mips_ffint_s_w_ARG1)
; CHECK-DAG: ld.w [[WS:\$w[0-9]+]], 0([[R1]])
; CHECK-DAG: ffint_s.w [[WD:\$w[0-9]+]], [[WS]]
; CHECK-DAG: lw [[R2:\$[0-9]+]], %got(llvm_mips_ffint_s_w_RES)
; CHECK-DAG: st.w [[WD]], 0([[R2]])
; CHECK: .size llvm_mips_ffint_s_w_test
;
@llvm_mips_ffint_s_d_ARG1 = global <2 x i64> <i64 0, i64 1>, align 16
@llvm_mips_ffint_s_d_RES = global <2 x double> <double 0.000000e+00, double 0.000000e+00>, align 16
define void @llvm_mips_ffint_s_d_test() nounwind {
entry:
%0 = load <2 x i64>* @llvm_mips_ffint_s_d_ARG1
%1 = tail call <2 x double> @llvm.mips.ffint.s.d(<2 x i64> %0)
store <2 x double> %1, <2 x double>* @llvm_mips_ffint_s_d_RES
ret void
}
declare <2 x double> @llvm.mips.ffint.s.d(<2 x i64>) nounwind
; CHECK: llvm_mips_ffint_s_d_test:
; CHECK-DAG: lw [[R1:\$[0-9]+]], %got(llvm_mips_ffint_s_d_ARG1)
; CHECK-DAG: ld.d [[WS:\$w[0-9]+]], 0([[R1]])
; CHECK-DAG: ffint_s.d [[WD:\$w[0-9]+]], [[WS]]
; CHECK-DAG: lw [[R2:\$[0-9]+]], %got(llvm_mips_ffint_s_d_RES)
; CHECK-DAG: st.d [[WD]], 0([[R2]])
; CHECK: .size llvm_mips_ffint_s_d_test
;
@llvm_mips_ffint_u_w_ARG1 = global <4 x i32> <i32 0, i32 1, i32 2, i32 3>, align 16
@llvm_mips_ffint_u_w_RES = global <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00>, align 16
define void @llvm_mips_ffint_u_w_test() nounwind {
entry:
%0 = load <4 x i32>* @llvm_mips_ffint_u_w_ARG1
%1 = tail call <4 x float> @llvm.mips.ffint.u.w(<4 x i32> %0)
store <4 x float> %1, <4 x float>* @llvm_mips_ffint_u_w_RES
ret void
}
declare <4 x float> @llvm.mips.ffint.u.w(<4 x i32>) nounwind
; CHECK: llvm_mips_ffint_u_w_test:
; CHECK-DAG: lw [[R1:\$[0-9]+]], %got(llvm_mips_ffint_u_w_ARG1)
; CHECK-DAG: ld.w [[WS:\$w[0-9]+]], 0([[R1]])
; CHECK-DAG: ffint_u.w [[WD:\$w[0-9]+]], [[WS]]
; CHECK-DAG: lw [[R2:\$[0-9]+]], %got(llvm_mips_ffint_u_w_RES)
; CHECK-DAG: st.w [[WD]], 0([[R2]])
; CHECK: .size llvm_mips_ffint_u_w_test
;
@llvm_mips_ffint_u_d_ARG1 = global <2 x i64> <i64 0, i64 1>, align 16
@llvm_mips_ffint_u_d_RES = global <2 x double> <double 0.000000e+00, double 0.000000e+00>, align 16
define void @llvm_mips_ffint_u_d_test() nounwind {
entry:
%0 = load <2 x i64>* @llvm_mips_ffint_u_d_ARG1
%1 = tail call <2 x double> @llvm.mips.ffint.u.d(<2 x i64> %0)
store <2 x double> %1, <2 x double>* @llvm_mips_ffint_u_d_RES
ret void
}
declare <2 x double> @llvm.mips.ffint.u.d(<2 x i64>) nounwind
; CHECK: llvm_mips_ffint_u_d_test:
; CHECK-DAG: lw [[R1:\$[0-9]+]], %got(llvm_mips_ffint_u_d_ARG1)
; CHECK-DAG: ld.d [[WS:\$w[0-9]+]], 0([[R1]])
; CHECK-DAG: ffint_u.d [[WD:\$w[0-9]+]], [[WS]]
; CHECK-DAG: lw [[R2:\$[0-9]+]], %got(llvm_mips_ffint_u_d_RES)
; CHECK-DAG: st.d [[WD]], 0([[R2]])
; CHECK: .size llvm_mips_ffint_u_d_test
;