1 ; RUN: ./amdgcn_glslc %s | FileCheck -check-prefix=GCN -check-prefix=FUNC %s 2 3 ; We don't want any "v_and" or "v_or" here. v_cvt_f16 only writes the lower 16 bits. 4 5 ; FUNC-LABEL: {{^}}@packhalf: 6 ; GCN: main 7 ; GCN: v_interp_mov 8 ; GCN: v_interp_mov 9 ; GCN-NEXT: v_cvt_f16_f32 10 ; GCN-NEXT: v_lshlrev_b32 11 ; GCN-NEXT: v_cvt_f16_f32 12 ; GCN-NEXT: epilog 13 14 #shader fs packhalf 15 #version 420 16 flat in vec2 v; 17 out uvec4 o; 18 void main() { 19 o.x = packHalf2x16(v); 20 } 21 22 23 ; FUNC-LABEL: {{^}}@unpackhalf: 24 ; GCN: main 25 ; GCN: v_interp_mov 26 ; GCN-NEXT: v_cvt_f32_f16 27 ; GCN-NEXT: v_lshrrev_b32 28 ; GCN-NEXT: v_cvt_f32_f16 29 ; GCN-NEXT: epilog 30 31 #shader fs unpackhalf 32 #version 420 33 flat in uint u; 34 out vec4 o; 35 void main() { 36 o.xy = unpackHalf2x16(u); 37 } 38
