mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-09-04 08:34:09 +02:00
Stephen Williams
cea237b407
By adding ivtest to the iverilog source tree, it is easier to keep the regression test synchronized with the source that is being tested. This should be especially helpful for PRs that add a new feature, and have a matching ivtest PR with the regression test for that feature.
341 lines
11 KiB
Verilog
341 lines
11 KiB
Verilog
// Test implicit casts during module output assignments.
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`ifdef __ICARUS__
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`define SUPPORT_REAL_NETS_IN_IVTEST
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`define SUPPORT_TWO_STATE_NETS_IN_IVTEST
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`endif
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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module cp_r(output wire real dst,
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input wire real src);
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assign dst = src;
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endmodule
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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module cp_u2(output wire bit unsigned [7:0] dst,
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input wire bit unsigned [7:0] src);
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assign dst = src;
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endmodule
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module cp_s2(output wire bit signed [7:0] dst,
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input wire bit signed [7:0] src);
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assign dst = src;
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endmodule
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`endif
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module cp_u4(output wire logic unsigned [7:0] dst,
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input wire logic unsigned [7:0] src);
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assign dst = src;
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endmodule
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module cp_s4(output wire logic signed [7:0] dst,
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input wire logic signed [7:0] src);
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assign dst = src;
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endmodule
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module implicit_cast();
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real src_r;
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bit unsigned [7:0] src_u2;
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bit signed [7:0] src_s2;
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logic unsigned [7:0] src_u4;
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logic signed [7:0] src_s4;
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logic unsigned [7:0] src_ux;
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logic signed [7:0] src_sx;
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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wire real dst1_r;
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wire real dst2_r;
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wire real dst3_r;
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wire real dst4_r;
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wire real dst5_r;
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wire real dst6_r;
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wire real dst7_r;
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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wire bit unsigned [3:0] dst1_u2s;
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wire bit unsigned [3:0] dst2_u2s;
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wire bit unsigned [3:0] dst3_u2s;
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wire bit unsigned [3:0] dst4_u2s;
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wire bit unsigned [3:0] dst5_u2s;
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wire bit unsigned [3:0] dst6_u2s;
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wire bit unsigned [3:0] dst7_u2s;
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wire bit signed [3:0] dst1_s2s;
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wire bit signed [3:0] dst2_s2s;
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wire bit signed [3:0] dst3_s2s;
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wire bit signed [3:0] dst4_s2s;
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wire bit signed [3:0] dst5_s2s;
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wire bit signed [3:0] dst6_s2s;
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wire bit signed [3:0] dst7_s2s;
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wire bit unsigned [11:0] dst1_u2l;
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wire bit unsigned [11:0] dst2_u2l;
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wire bit unsigned [11:0] dst3_u2l;
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wire bit unsigned [11:0] dst4_u2l;
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wire bit unsigned [11:0] dst5_u2l;
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wire bit unsigned [11:0] dst6_u2l;
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wire bit unsigned [11:0] dst7_u2l;
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wire bit signed [11:0] dst1_s2l;
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wire bit signed [11:0] dst2_s2l;
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wire bit signed [11:0] dst3_s2l;
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wire bit signed [11:0] dst4_s2l;
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wire bit signed [11:0] dst5_s2l;
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wire bit signed [11:0] dst6_s2l;
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wire bit signed [11:0] dst7_s2l;
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`endif
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wire logic unsigned [3:0] dst1_u4s;
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wire logic unsigned [3:0] dst2_u4s;
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wire logic unsigned [3:0] dst3_u4s;
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wire logic unsigned [3:0] dst4_u4s;
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wire logic unsigned [3:0] dst5_u4s;
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wire logic unsigned [3:0] dst6_u4s;
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wire logic unsigned [3:0] dst7_u4s;
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wire logic signed [3:0] dst1_s4s;
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wire logic signed [3:0] dst2_s4s;
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wire logic signed [3:0] dst3_s4s;
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wire logic signed [3:0] dst4_s4s;
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wire logic signed [3:0] dst5_s4s;
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wire logic signed [3:0] dst6_s4s;
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wire logic signed [3:0] dst7_s4s;
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wire logic unsigned [11:0] dst1_u4l;
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wire logic unsigned [11:0] dst2_u4l;
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wire logic unsigned [11:0] dst3_u4l;
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wire logic unsigned [11:0] dst4_u4l;
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wire logic unsigned [11:0] dst5_u4l;
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wire logic unsigned [11:0] dst6_u4l;
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wire logic unsigned [11:0] dst7_u4l;
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wire logic signed [11:0] dst1_s4l;
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wire logic signed [11:0] dst2_s4l;
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wire logic signed [11:0] dst3_s4l;
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wire logic signed [11:0] dst4_s4l;
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wire logic signed [11:0] dst5_s4l;
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wire logic signed [11:0] dst6_s4l;
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wire logic signed [11:0] dst7_s4l;
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_r(dst1_r, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_r(dst2_r, src_u2);
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cp_s2 cp3_r(dst3_r, src_s2);
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`endif
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cp_u4 cp4_r(dst4_r, src_u4);
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cp_s4 cp5_r(dst5_r, src_s4);
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cp_u4 cp6_r(dst6_r, src_ux);
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cp_s4 cp7_r(dst7_r, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_u2s(dst1_u2s, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_u2s(dst2_u2s, src_u2);
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cp_s2 cp3_u2s(dst3_u2s, src_s2);
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`endif
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cp_u4 cp4_u2s(dst4_u2s, src_u4);
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cp_s4 cp5_u2s(dst5_u2s, src_s4);
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cp_u4 cp6_u2s(dst6_u2s, src_ux);
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cp_s4 cp7_u2s(dst7_u2s, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_s2s(dst1_s2s, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_s2s(dst2_s2s, src_u2);
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cp_s2 cp3_s2s(dst3_s2s, src_s2);
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`endif
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cp_u4 cp4_s2s(dst4_s2s, src_u4);
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cp_s4 cp5_s2s(dst5_s2s, src_s4);
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cp_u4 cp6_s2s(dst6_s2s, src_ux);
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cp_s4 cp7_s2s(dst7_s2s, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_u2l(dst1_u2l, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_u2l(dst2_u2l, src_u2);
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cp_s2 cp3_u2l(dst3_u2l, src_s2);
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`endif
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cp_u4 cp4_u2l(dst4_u2l, src_u4);
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cp_s4 cp5_u2l(dst5_u2l, src_s4);
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cp_u4 cp6_u2l(dst6_u2l, src_ux);
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cp_s4 cp7_u2l(dst7_u2l, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_s2l(dst1_s2l, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_s2l(dst2_s2l, src_u2);
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cp_s2 cp3_s2l(dst3_s2l, src_s2);
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`endif
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cp_u4 cp4_s2l(dst4_s2l, src_u4);
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cp_s4 cp5_s2l(dst5_s2l, src_s4);
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cp_u4 cp6_s2l(dst6_s2l, src_ux);
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cp_s4 cp7_s2l(dst7_s2l, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_u4s(dst1_u4s, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_u4s(dst2_u4s, src_u2);
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cp_s2 cp3_u4s(dst3_u4s, src_s2);
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`endif
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cp_u4 cp4_u4s(dst4_u4s, src_u4);
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cp_s4 cp5_u4s(dst5_u4s, src_s4);
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cp_u4 cp6_u4s(dst6_u4s, src_ux);
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cp_s4 cp7_u4s(dst7_u4s, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_s4s(dst1_s4s, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_s4s(dst2_s4s, src_u2);
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cp_s2 cp3_s4s(dst3_s4s, src_s2);
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`endif
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cp_u4 cp4_s4s(dst4_s4s, src_u4);
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cp_s4 cp5_s4s(dst5_s4s, src_s4);
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cp_u4 cp6_s4s(dst6_s4s, src_ux);
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cp_s4 cp7_s4s(dst7_s4s, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_u4l(dst1_u4l, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_u4l(dst2_u4l, src_u2);
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cp_s2 cp3_u4l(dst3_u4l, src_s2);
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`endif
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cp_u4 cp4_u4l(dst4_u4l, src_u4);
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cp_s4 cp5_u4l(dst5_u4l, src_s4);
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cp_u4 cp6_u4l(dst6_u4l, src_ux);
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cp_s4 cp7_u4l(dst7_u4l, src_sx);
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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cp_r cp1_s4l(dst1_s4l, src_r);
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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cp_u2 cp2_s4l(dst2_s4l, src_u2);
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cp_s2 cp3_s4l(dst3_s4l, src_s2);
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`endif
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cp_u4 cp4_s4l(dst4_s4l, src_u4);
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cp_s4 cp5_s4l(dst5_s4l, src_s4);
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cp_u4 cp6_s4l(dst6_s4l, src_ux);
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cp_s4 cp7_s4l(dst7_s4l, src_sx);
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bit failed;
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initial begin
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failed = 0;
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src_r = -7;
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src_u2 = 7;
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src_s2 = -7;
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src_u4 = 7;
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src_s4 = -7;
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src_ux = 8'bx0z00111;
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src_sx = 8'bx0z00111;
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#1;
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`ifdef SUPPORT_REAL_NETS_IN_IVTEST
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$display("cast to real");
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$display("%g", dst1_r); if (dst1_r != -7.0) failed = 1;
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$display("%g", dst2_r); if (dst2_r != 7.0) failed = 1;
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$display("%g", dst3_r); if (dst3_r != -7.0) failed = 1;
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$display("%g", dst4_r); if (dst4_r != 7.0) failed = 1;
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$display("%g", dst5_r); if (dst5_r != -7.0) failed = 1;
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$display("%g", dst6_r); if (dst6_r != 7.0) failed = 1;
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$display("%g", dst7_r); if (dst7_r != 7.0) failed = 1;
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`endif
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`ifdef SUPPORT_TWO_STATE_NETS_IN_IVTEST
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$display("cast to small unsigned bit");
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$display("%d", dst1_u2s); if (dst1_u2s !== 4'd9) failed = 1;
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$display("%d", dst2_u2s); if (dst2_u2s !== 4'd7) failed = 1;
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$display("%d", dst3_u2s); if (dst3_u2s !== 4'd9) failed = 1;
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$display("%d", dst4_u2s); if (dst4_u2s !== 4'd7) failed = 1;
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$display("%d", dst5_u2s); if (dst5_u2s !== 4'd9) failed = 1;
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$display("%d", dst6_u2s); if (dst6_u2s !== 4'd7) failed = 1;
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$display("%d", dst7_u2s); if (dst7_u2s !== 4'd7) failed = 1;
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$display("cast to small signed bit");
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$display("%d", dst1_s2s); if (dst1_s2s !== -4'sd7) failed = 1;
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$display("%d", dst2_s2s); if (dst2_s2s !== 4'sd7) failed = 1;
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$display("%d", dst3_s2s); if (dst3_s2s !== -4'sd7) failed = 1;
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$display("%d", dst4_s2s); if (dst4_s2s !== 4'sd7) failed = 1;
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$display("%d", dst5_s2s); if (dst5_s2s !== -4'sd7) failed = 1;
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$display("%d", dst6_s2s); if (dst6_s2s !== 4'sd7) failed = 1;
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$display("%d", dst7_s2s); if (dst7_s2s !== 4'sd7) failed = 1;
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$display("cast to large unsigned bit");
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$display("%d", dst1_u2l); if (dst1_u2l !== 12'd4089) failed = 1;
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$display("%d", dst2_u2l); if (dst2_u2l !== 12'd7) failed = 1;
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$display("%d", dst3_u2l); if (dst3_u2l !== 12'd4089) failed = 1;
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$display("%d", dst4_u2l); if (dst4_u2l !== 12'd7) failed = 1;
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$display("%d", dst5_u2l); if (dst5_u2l !== 12'd4089) failed = 1;
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$display("%b", dst6_u2l); if (dst6_u2l !== 12'b000000000111) failed = 1;
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$display("%b", dst7_u2l); if (dst7_u2l !== 12'b000000000111) failed = 1;
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$display("cast to large signed bit");
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$display("%d", dst1_s2l); if (dst1_s2l !== -12'sd7) failed = 1;
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$display("%d", dst2_s2l); if (dst2_s2l !== 12'sd7) failed = 1;
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$display("%d", dst3_s2l); if (dst3_s2l !== -12'sd7) failed = 1;
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$display("%d", dst4_s2l); if (dst4_s2l !== 12'sd7) failed = 1;
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$display("%d", dst5_s2l); if (dst5_s2l !== -12'sd7) failed = 1;
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$display("%b", dst6_s2l); if (dst6_s2l !== 12'b000000000111) failed = 1;
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$display("%b", dst7_s2l); if (dst7_s2l !== 12'b000000000111) failed = 1;
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`endif
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$display("cast to small unsigned logic");
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$display("%d", dst1_u4s); if (dst1_u4s !== 4'd9) failed = 1;
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$display("%d", dst2_u4s); if (dst2_u4s !== 4'd7) failed = 1;
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$display("%d", dst3_u4s); if (dst3_u4s !== 4'd9) failed = 1;
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$display("%d", dst4_u4s); if (dst4_u4s !== 4'd7) failed = 1;
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$display("%d", dst5_u4s); if (dst5_u4s !== 4'd9) failed = 1;
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$display("%d", dst6_u4s); if (dst6_u4s !== 4'd7) failed = 1;
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$display("%d", dst7_u4s); if (dst7_u4s !== 4'd7) failed = 1;
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$display("cast to small signed logic");
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$display("%d", dst1_s4s); if (dst1_s4s !== -4'sd7) failed = 1;
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$display("%d", dst2_s4s); if (dst2_s4s !== 4'sd7) failed = 1;
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$display("%d", dst3_s4s); if (dst3_s4s !== -4'sd7) failed = 1;
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$display("%d", dst4_s4s); if (dst4_s4s !== 4'sd7) failed = 1;
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$display("%d", dst5_s4s); if (dst5_s4s !== -4'sd7) failed = 1;
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$display("%d", dst6_s4s); if (dst6_s4s !== 4'sd7) failed = 1;
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$display("%d", dst7_s4s); if (dst7_s4s !== 4'sd7) failed = 1;
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$display("cast to large unsigned logic");
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$display("%d", dst1_u4l); if (dst1_u4l !== 12'd4089) failed = 1;
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$display("%d", dst2_u4l); if (dst2_u4l !== 12'd7) failed = 1;
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$display("%d", dst3_u4l); if (dst3_u4l !== 12'd4089) failed = 1;
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$display("%d", dst4_u4l); if (dst4_u4l !== 12'd7) failed = 1;
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$display("%d", dst5_u4l); if (dst5_u4l !== 12'd4089) failed = 1;
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$display("%b", dst6_u4l); if (dst6_u4l !== 12'b0000x0z00111) failed = 1;
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$display("%b", dst7_u4l); if (dst7_u4l !== 12'bxxxxx0z00111) failed = 1;
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$display("cast to large signed logic");
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$display("%d", dst1_s4l); if (dst1_s4l !== -12'sd7) failed = 1;
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$display("%d", dst2_s4l); if (dst2_s4l !== 12'sd7) failed = 1;
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$display("%d", dst3_s4l); if (dst3_s4l !== -12'sd7) failed = 1;
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$display("%d", dst4_s4l); if (dst4_s4l !== 12'sd7) failed = 1;
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$display("%d", dst5_s4l); if (dst5_s4l !== -12'sd7) failed = 1;
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$display("%b", dst6_s4l); if (dst6_s4l !== 12'b0000x0z00111) failed = 1;
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$display("%b", dst7_s4l); if (dst7_s4l !== 12'bxxxxx0z00111) failed = 1;
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if (failed)
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$display("FAILED");
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else
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$display("PASSED");
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end
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endmodule
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